Home / 40,702,403.40-61,035,890.40-13,398,145.80

Finding the Fourth Proportional to 40,702,403.40, 61,035,890.40 and 13,398,145.80

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Solution

The fourth proportional to 40,702,403.40, 61,035,890.40 and 13,398,145.80 is: 20,091,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,702,403.40 : 61,035,890.40 = 13,398,145.80 : x
  2. Step 2: Convert to fraction form
    40,702,403.40/61,035,890.40 = 13,398,145.80/x
  3. Step 3: Cross multiply
    40,702,403.40x = 61,035,890.40 × 13,398,145.80
  4. Step 4: Simplify right side
    40,702,403.40x = 817,767,758,612,020.38
  5. Step 5: Solve for x
    x = 817,767,758,612,020.38/40,702,403.40
  6. Step 6: Final answer
    x = 20,091,387.49

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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.