Home / 5,429,942,429.20-8,144,913,643.80-2,158,391,633.20

Finding the Fourth Proportional to 5,429,942,429.20, 8,144,913,643.80 and 2,158,391,633.20

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Solution

The fourth proportional to 5,429,942,429.20, 8,144,913,643.80 and 2,158,391,633.20 is: 3,237,587,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,942,429.20 : 8,144,913,643.80 = 2,158,391,633.20 : x
  2. Step 2: Convert to fraction form
    5,429,942,429.20/8,144,913,643.80 = 2,158,391,633.20/x
  3. Step 3: Cross multiply
    5,429,942,429.20x = 8,144,913,643.80 × 2,158,391,633.20
  4. Step 4: Simplify right side
    5,429,942,429.20x = 17,579,913,461,914,443,776
  5. Step 5: Solve for x
    x = 17,579,913,461,914,443,776/5,429,942,429.20
  6. Step 6: Final answer
    x = 3,237,587,449.80

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Double scale
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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.