Home / 78,218,714.10-109,732,947.90-78,218,714.10

Finding the Fourth Proportional to 78,218,714.10, 109,732,947.90 and 78,218,714.10

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Solution

The fourth proportional to 78,218,714.10, 109,732,947.90 and 78,218,714.10 is: 109,732,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,218,714.10 : 109,732,947.90 = 78,218,714.10 : x
  2. Step 2: Convert to fraction form
    78,218,714.10/109,732,947.90 = 78,218,714.10/x
  3. Step 3: Cross multiply
    78,218,714.10x = 109,732,947.90 × 78,218,714.10
  4. Step 4: Simplify right side
    78,218,714.10x = 8,583,170,079,140,295
  5. Step 5: Solve for x
    x = 8,583,170,079,140,295/78,218,714.10
  6. Step 6: Final answer
    x = 109,732,947.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.