Home / 131,042,470.71-180,842,394.67-72,308,918.12

Finding the Fourth Proportional to 131,042,470.71, 180,842,394.67 and 72,308,918.12

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Solution

The fourth proportional to 131,042,470.71, 180,842,394.67 and 72,308,918.12 is: 99,788,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,042,470.71 : 180,842,394.67 = 72,308,918.12 : x
  2. Step 2: Convert to fraction form
    131,042,470.71/180,842,394.67 = 72,308,918.12/x
  3. Step 3: Cross multiply
    131,042,470.71x = 180,842,394.67 × 72,308,918.12
  4. Step 4: Simplify right side
    131,042,470.71x = 13,076,517,908,342,532
  5. Step 5: Solve for x
    x = 13,076,517,908,342,532/131,042,470.71
  6. Step 6: Final answer
    x = 99,788,395.61

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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.