Home / 19,406,412.50-29,142,565.58-12,970,843.80

Finding the Fourth Proportional to 19,406,412.50, 29,142,565.58 and 12,970,843.80

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Solution

The fourth proportional to 19,406,412.50, 29,142,565.58 and 12,970,843.80 is: 19,478,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406,412.50 : 29,142,565.58 = 12,970,843.80 : x
  2. Step 2: Convert to fraction form
    19,406,412.50/29,142,565.58 = 12,970,843.80/x
  3. Step 3: Cross multiply
    19,406,412.50x = 29,142,565.58 × 12,970,843.80
  4. Step 4: Simplify right side
    19,406,412.50x = 378,003,666,069,436.38
  5. Step 5: Solve for x
    x = 378,003,666,069,436.38/19,406,412.50
  6. Step 6: Final answer
    x = 19,478,286.68

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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.