Home / 249,716,781.20-374,425,872.60-128,784,429.20

Finding the Fourth Proportional to 249,716,781.20, 374,425,872.60 and 128,784,429.20

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Solution

The fourth proportional to 249,716,781.20, 374,425,872.60 and 128,784,429.20 is: 193,099,646.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,716,781.20 : 374,425,872.60 = 128,784,429.20 : x
  2. Step 2: Convert to fraction form
    249,716,781.20/374,425,872.60 = 128,784,429.20/x
  3. Step 3: Cross multiply
    249,716,781.20x = 374,425,872.60 × 128,784,429.20
  4. Step 4: Simplify right side
    249,716,781.20x = 48,220,222,280,502,928
  5. Step 5: Solve for x
    x = 48,220,222,280,502,928/249,716,781.20
  6. Step 6: Final answer
    x = 193,099,646.92

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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.