Home / 1,659,213,194.80-2,488,819,792.20-432,381,646.30

Finding the Fourth Proportional to 1,659,213,194.80, 2,488,819,792.20 and 432,381,646.30

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Solution

The fourth proportional to 1,659,213,194.80, 2,488,819,792.20 and 432,381,646.30 is: 648,572,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,213,194.80 : 2,488,819,792.20 = 432,381,646.30 : x
  2. Step 2: Convert to fraction form
    1,659,213,194.80/2,488,819,792.20 = 432,381,646.30/x
  3. Step 3: Cross multiply
    1,659,213,194.80x = 2,488,819,792.20 × 432,381,646.30
  4. Step 4: Simplify right side
    1,659,213,194.80x = 1,076,119,999,095,459,840
  5. Step 5: Solve for x
    x = 1,076,119,999,095,459,840/1,659,213,194.80
  6. Step 6: Final answer
    x = 648,572,469.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.