Home / 47,508,918.80-71,234,509.80-18,721,875.20

Finding the Fourth Proportional to 47,508,918.80, 71,234,509.80 and 18,721,875.20

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Solution

The fourth proportional to 47,508,918.80, 71,234,509.80 and 18,721,875.20 is: 28,071,436.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,508,918.80 : 71,234,509.80 = 18,721,875.20 : x
  2. Step 2: Convert to fraction form
    47,508,918.80/71,234,509.80 = 18,721,875.20/x
  3. Step 3: Cross multiply
    47,508,918.80x = 71,234,509.80 × 18,721,875.20
  4. Step 4: Simplify right side
    47,508,918.80x = 1,333,643,602,408,776.75
  5. Step 5: Solve for x
    x = 1,333,643,602,408,776.75/47,508,918.80
  6. Step 6: Final answer
    x = 28,071,436.61

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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.