Home / 124,437,890.20-186,656,835.30-86,174,138.20

Finding the Fourth Proportional to 124,437,890.20, 186,656,835.30 and 86,174,138.20

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Solution

The fourth proportional to 124,437,890.20, 186,656,835.30 and 86,174,138.20 is: 129,261,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,437,890.20 : 186,656,835.30 = 86,174,138.20 : x
  2. Step 2: Convert to fraction form
    124,437,890.20/186,656,835.30 = 86,174,138.20/x
  3. Step 3: Cross multiply
    124,437,890.20x = 186,656,835.30 × 86,174,138.20
  4. Step 4: Simplify right side
    124,437,890.20x = 16,084,991,921,116,840
  5. Step 5: Solve for x
    x = 16,084,991,921,116,840/124,437,890.20
  6. Step 6: Final answer
    x = 129,261,207.30

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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.