Home / 481,539,128.90-664,564,981.83-272,732,417.06

Finding the Fourth Proportional to 481,539,128.90, 664,564,981.83 and 272,732,417.06

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Solution

The fourth proportional to 481,539,128.90, 664,564,981.83 and 272,732,417.06 is: 376,393,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,539,128.90 : 664,564,981.83 = 272,732,417.06 : x
  2. Step 2: Convert to fraction form
    481,539,128.90/664,564,981.83 = 272,732,417.06/x
  3. Step 3: Cross multiply
    481,539,128.90x = 664,564,981.83 × 272,732,417.06
  4. Step 4: Simplify right side
    481,539,128.90x = 181,248,413,787,930,880
  5. Step 5: Solve for x
    x = 181,248,413,787,930,880/481,539,128.90
  6. Step 6: Final answer
    x = 376,393,947.89

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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.