Home / 191,787,000.10-287,722,490.55-76,742,635.30

Finding the Fourth Proportional to 191,787,000.10, 287,722,490.55 and 76,742,635.30

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Solution

The fourth proportional to 191,787,000.10, 287,722,490.55 and 76,742,635.30 is: 115,130,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,787,000.10 : 287,722,490.55 = 76,742,635.30 : x
  2. Step 2: Convert to fraction form
    191,787,000.10/287,722,490.55 = 76,742,635.30/x
  3. Step 3: Cross multiply
    191,787,000.10x = 287,722,490.55 × 76,742,635.30
  4. Step 4: Simplify right side
    191,787,000.10x = 22,080,582,159,886,348
  5. Step 5: Solve for x
    x = 22,080,582,159,886,348/191,787,000.10
  6. Step 6: Final answer
    x = 115,130,755.20

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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.