Home / 12,102,665.40-18,153,998.10-10,779,967.80

Finding the Fourth Proportional to 12,102,665.40, 18,153,998.10 and 10,779,967.80

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Solution

The fourth proportional to 12,102,665.40, 18,153,998.10 and 10,779,967.80 is: 16,169,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102,665.40 : 18,153,998.10 = 10,779,967.80 : x
  2. Step 2: Convert to fraction form
    12,102,665.40/18,153,998.10 = 10,779,967.80/x
  3. Step 3: Cross multiply
    12,102,665.40x = 18,153,998.10 × 10,779,967.80
  4. Step 4: Simplify right side
    12,102,665.40x = 195,699,514,959,261.22
  5. Step 5: Solve for x
    x = 195,699,514,959,261.22/12,102,665.40
  6. Step 6: Final answer
    x = 16,169,951.70

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Similar ratio
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1.5x scale

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.