Home / 14,985,661.53-20,678,001.85-8,788,368.52

Finding the Fourth Proportional to 14,985,661.53, 20,678,001.85 and 8,788,368.52

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Solution

The fourth proportional to 14,985,661.53, 20,678,001.85 and 8,788,368.52 is: 12,126,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985,661.53 : 20,678,001.85 = 8,788,368.52 : x
  2. Step 2: Convert to fraction form
    14,985,661.53/20,678,001.85 = 8,788,368.52/x
  3. Step 3: Cross multiply
    14,985,661.53x = 20,678,001.85 × 8,788,368.52
  4. Step 4: Simplify right side
    14,985,661.53x = 181,725,900,515,041.78
  5. Step 5: Solve for x
    x = 181,725,900,515,041.78/14,985,661.53
  6. Step 6: Final answer
    x = 12,126,651.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.