Home / 77,008,834.60-115,513,251.90-31,603,215.40

Finding the Fourth Proportional to 77,008,834.60, 115,513,251.90 and 31,603,215.40

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Solution

The fourth proportional to 77,008,834.60, 115,513,251.90 and 31,603,215.40 is: 47,404,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,008,834.60 : 115,513,251.90 = 31,603,215.40 : x
  2. Step 2: Convert to fraction form
    77,008,834.60/115,513,251.90 = 31,603,215.40/x
  3. Step 3: Cross multiply
    77,008,834.60x = 115,513,251.90 × 31,603,215.40
  4. Step 4: Simplify right side
    77,008,834.60x = 3,650,590,181,350,159.50
  5. Step 5: Solve for x
    x = 3,650,590,181,350,159.50/77,008,834.60
  6. Step 6: Final answer
    x = 47,404,823.10

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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.