Home / 10,178,178.40-15,265,663.80-8,460,080.92

Finding the Fourth Proportional to 10,178,178.40, 15,265,663.80 and 8,460,080.92

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Solution

The fourth proportional to 10,178,178.40, 15,265,663.80 and 8,460,080.92 is: 12,688,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178,178.40 : 15,265,663.80 = 8,460,080.92 : x
  2. Step 2: Convert to fraction form
    10,178,178.40/15,265,663.80 = 8,460,080.92/x
  3. Step 3: Cross multiply
    10,178,178.40x = 15,265,663.80 × 8,460,080.92
  4. Step 4: Simplify right side
    10,178,178.40x = 129,148,751,045,514.70
  5. Step 5: Solve for x
    x = 129,148,751,045,514.70/10,178,178.40
  6. Step 6: Final answer
    x = 12,688,788.30

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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.