Home / 55,566,221.78-76,681,386.06-31,119,935.78

Finding the Fourth Proportional to 55,566,221.78, 76,681,386.06 and 31,119,935.78

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Solution

The fourth proportional to 55,566,221.78, 76,681,386.06 and 31,119,935.78 is: 42,945,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,566,221.78 : 76,681,386.06 = 31,119,935.78 : x
  2. Step 2: Convert to fraction form
    55,566,221.78/76,681,386.06 = 31,119,935.78/x
  3. Step 3: Cross multiply
    55,566,221.78x = 76,681,386.06 × 31,119,935.78
  4. Step 4: Simplify right side
    55,566,221.78x = 2,386,319,809,708,587.50
  5. Step 5: Solve for x
    x = 2,386,319,809,708,587.50/55,566,221.78
  6. Step 6: Final answer
    x = 42,945,511.38

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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.