Home / 42,154,799.06-58,155,809.36-28,220,643.54

Finding the Fourth Proportional to 42,154,799.06, 58,155,809.36 and 28,220,643.54

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Solution

The fourth proportional to 42,154,799.06, 58,155,809.36 and 28,220,643.54 is: 38,932,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154,799.06 : 58,155,809.36 = 28,220,643.54 : x
  2. Step 2: Convert to fraction form
    42,154,799.06/58,155,809.36 = 28,220,643.54/x
  3. Step 3: Cross multiply
    42,154,799.06x = 58,155,809.36 × 28,220,643.54
  4. Step 4: Simplify right side
    42,154,799.06x = 1,641,194,365,587,652.25
  5. Step 5: Solve for x
    x = 1,641,194,365,587,652.25/42,154,799.06
  6. Step 6: Final answer
    x = 38,932,562.89

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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.