Home / 149,538,428.40-224,538,589.80-81,513,980.40

Finding the Fourth Proportional to 149,538,428.40, 224,538,589.80 and 81,513,980.40

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Solution

The fourth proportional to 149,538,428.40, 224,538,589.80 and 81,513,980.40 is: 122,396,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,538,428.40 : 224,538,589.80 = 81,513,980.40 : x
  2. Step 2: Convert to fraction form
    149,538,428.40/224,538,589.80 = 81,513,980.40/x
  3. Step 3: Cross multiply
    149,538,428.40x = 224,538,589.80 × 81,513,980.40
  4. Step 4: Simplify right side
    149,538,428.40x = 18,303,034,208,000,844
  5. Step 5: Solve for x
    x = 18,303,034,208,000,844/149,538,428.40
  6. Step 6: Final answer
    x = 122,396,860.82

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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.