Home / 129,163,506.60-193,526,015.10-77,937,887.40

Finding the Fourth Proportional to 129,163,506.60, 193,526,015.10 and 77,937,887.40

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Solution

The fourth proportional to 129,163,506.60, 193,526,015.10 and 77,937,887.40 is: 116,774,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,163,506.60 : 193,526,015.10 = 77,937,887.40 : x
  2. Step 2: Convert to fraction form
    129,163,506.60/193,526,015.10 = 77,937,887.40/x
  3. Step 3: Cross multiply
    129,163,506.60x = 193,526,015.10 × 77,937,887.40
  4. Step 4: Simplify right side
    129,163,506.60x = 15,083,008,773,834,500
  5. Step 5: Solve for x
    x = 15,083,008,773,834,500/129,163,506.60
  6. Step 6: Final answer
    x = 116,774,537.72

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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.