Home / 156,047,026.16-215,344,892.08-86,436,891.04

Finding the Fourth Proportional to 156,047,026.16, 215,344,892.08 and 86,436,891.04

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Solution

The fourth proportional to 156,047,026.16, 215,344,892.08 and 86,436,891.04 is: 119,282,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,047,026.16 : 215,344,892.08 = 86,436,891.04 : x
  2. Step 2: Convert to fraction form
    156,047,026.16/215,344,892.08 = 86,436,891.04/x
  3. Step 3: Cross multiply
    156,047,026.16x = 215,344,892.08 × 86,436,891.04
  4. Step 4: Simplify right side
    156,047,026.16x = 18,613,742,972,739,520
  5. Step 5: Solve for x
    x = 18,613,742,972,739,520/156,047,026.16
  6. Step 6: Final answer
    x = 119,282,907.41

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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.