Home / 42,409,640.40-63,614,460.60-39,291,853.20

Finding the Fourth Proportional to 42,409,640.40, 63,614,460.60 and 39,291,853.20

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Solution

The fourth proportional to 42,409,640.40, 63,614,460.60 and 39,291,853.20 is: 58,937,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,409,640.40 : 63,614,460.60 = 39,291,853.20 : x
  2. Step 2: Convert to fraction form
    42,409,640.40/63,614,460.60 = 39,291,853.20/x
  3. Step 3: Cross multiply
    42,409,640.40x = 63,614,460.60 × 39,291,853.20
  4. Step 4: Simplify right side
    42,409,640.40x = 2,499,530,047,292,384
  5. Step 5: Solve for x
    x = 2,499,530,047,292,384/42,409,640.40
  6. Step 6: Final answer
    x = 58,937,779.80

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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.