Home / 131,578,892.65-181,571,678.19-72,028,668.70

Finding the Fourth Proportional to 131,578,892.65, 181,571,678.19 and 72,028,668.70

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Solution

The fourth proportional to 131,578,892.65, 181,571,678.19 and 72,028,668.70 is: 99,395,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578,892.65 : 181,571,678.19 = 72,028,668.70 : x
  2. Step 2: Convert to fraction form
    131,578,892.65/181,571,678.19 = 72,028,668.70/x
  3. Step 3: Cross multiply
    131,578,892.65x = 181,571,678.19 × 72,028,668.70
  4. Step 4: Simplify right side
    131,578,892.65x = 13,078,366,252,742,666
  5. Step 5: Solve for x
    x = 13,078,366,252,742,666/131,578,892.65
  6. Step 6: Final answer
    x = 99,395,624.86

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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.