Home / 1,092,100,931.80-1,638,151,397.70-402,503,090.20

Finding the Fourth Proportional to 1,092,100,931.80, 1,638,151,397.70 and 402,503,090.20

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Solution

The fourth proportional to 1,092,100,931.80, 1,638,151,397.70 and 402,503,090.20 is: 603,754,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,100,931.80 : 1,638,151,397.70 = 402,503,090.20 : x
  2. Step 2: Convert to fraction form
    1,092,100,931.80/1,638,151,397.70 = 402,503,090.20/x
  3. Step 3: Cross multiply
    1,092,100,931.80x = 1,638,151,397.70 × 402,503,090.20
  4. Step 4: Simplify right side
    1,092,100,931.80x = 659,360,999,789,699,200
  5. Step 5: Solve for x
    x = 659,360,999,789,699,200/1,092,100,931.80
  6. Step 6: Final answer
    x = 603,754,635.30

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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.