Home / 42,009,273.60-63,108,388.80-40,403,140.80

Finding the Fourth Proportional to 42,009,273.60, 63,108,388.80 and 40,403,140.80

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Solution

The fourth proportional to 42,009,273.60, 63,108,388.80 and 40,403,140.80 is: 60,695,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009,273.60 : 63,108,388.80 = 40,403,140.80 : x
  2. Step 2: Convert to fraction form
    42,009,273.60/63,108,388.80 = 40,403,140.80/x
  3. Step 3: Cross multiply
    42,009,273.60x = 63,108,388.80 × 40,403,140.80
  4. Step 4: Simplify right side
    42,009,273.60x = 2,549,777,118,347,542.50
  5. Step 5: Solve for x
    x = 2,549,777,118,347,542.50/42,009,273.60
  6. Step 6: Final answer
    x = 60,695,577.42

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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.