Home / 688,132,381.60-1,032,198,572.40-257,254,890.40

Finding the Fourth Proportional to 688,132,381.60, 1,032,198,572.40 and 257,254,890.40

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Solution

The fourth proportional to 688,132,381.60, 1,032,198,572.40 and 257,254,890.40 is: 385,882,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,132,381.60 : 1,032,198,572.40 = 257,254,890.40 : x
  2. Step 2: Convert to fraction form
    688,132,381.60/1,032,198,572.40 = 257,254,890.40/x
  3. Step 3: Cross multiply
    688,132,381.60x = 1,032,198,572.40 × 257,254,890.40
  4. Step 4: Simplify right side
    688,132,381.60x = 265,538,130,613,798,464
  5. Step 5: Solve for x
    x = 265,538,130,613,798,464/688,132,381.60
  6. Step 6: Final answer
    x = 385,882,335.60

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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.