Home / 486,879,893.28-671,966,368.56-308,280,384

Finding the Fourth Proportional to 486,879,893.28, 671,966,368.56 and 308,280,384

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Solution

The fourth proportional to 486,879,893.28, 671,966,368.56 and 308,280,384 is: 425,472,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,879,893.28 : 671,966,368.56 = 308,280,384 : x
  2. Step 2: Convert to fraction form
    486,879,893.28/671,966,368.56 = 308,280,384/x
  3. Step 3: Cross multiply
    486,879,893.28x = 671,966,368.56 × 308,280,384
  4. Step 4: Simplify right side
    486,879,893.28x = 207,154,050,134,762,304
  5. Step 5: Solve for x
    x = 207,154,050,134,762,304/486,879,893.28
  6. Step 6: Final answer
    x = 425,472,591.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.