Home / 55,566,220.50-76,681,384.29-31,119,934.50

Finding the Fourth Proportional to 55,566,220.50, 76,681,384.29 and 31,119,934.50

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Solution

The fourth proportional to 55,566,220.50, 76,681,384.29 and 31,119,934.50 is: 42,945,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,566,220.50 : 76,681,384.29 = 31,119,934.50 : x
  2. Step 2: Convert to fraction form
    55,566,220.50/76,681,384.29 = 31,119,934.50/x
  3. Step 3: Cross multiply
    55,566,220.50x = 76,681,384.29 × 31,119,934.50
  4. Step 4: Simplify right side
    55,566,220.50x = 2,386,319,656,474,129
  5. Step 5: Solve for x
    x = 2,386,319,656,474,129/55,566,220.50
  6. Step 6: Final answer
    x = 42,945,509.61

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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.