Home / 28,110,001.80-42,071,690.70-20,411,761.80

Finding the Fourth Proportional to 28,110,001.80, 42,071,690.70 and 20,411,761.80

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Solution

The fourth proportional to 28,110,001.80, 42,071,690.70 and 20,411,761.80 is: 30,549,885.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110,001.80 : 42,071,690.70 = 20,411,761.80 : x
  2. Step 2: Convert to fraction form
    28,110,001.80/42,071,690.70 = 20,411,761.80/x
  3. Step 3: Cross multiply
    28,110,001.80x = 42,071,690.70 × 20,411,761.80
  4. Step 4: Simplify right side
    28,110,001.80x = 858,757,329,091,675.38
  5. Step 5: Solve for x
    x = 858,757,329,091,675.38/28,110,001.80
  6. Step 6: Final answer
    x = 30,549,885.24

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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.