Home / 72,637,523.60-108,998,679-40,316,550.80

Finding the Fourth Proportional to 72,637,523.60, 108,998,679 and 40,316,550.80

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Solution

The fourth proportional to 72,637,523.60, 108,998,679 and 40,316,550.80 is: 60,498,356.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637,523.60 : 108,998,679 = 40,316,550.80 : x
  2. Step 2: Convert to fraction form
    72,637,523.60/108,998,679 = 40,316,550.80/x
  3. Step 3: Cross multiply
    72,637,523.60x = 108,998,679 × 40,316,550.80
  4. Step 4: Simplify right side
    72,637,523.60x = 4,394,450,779,036,393
  5. Step 5: Solve for x
    x = 4,394,450,779,036,393/72,637,523.60
  6. Step 6: Final answer
    x = 60,498,356.24

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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.