Home / 80,626,900.32-121,018,304.88-76,257,293.76

Finding the Fourth Proportional to 80,626,900.32, 121,018,304.88 and 76,257,293.76

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Solution

The fourth proportional to 80,626,900.32, 121,018,304.88 and 76,257,293.76 is: 114,459,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,626,900.32 : 121,018,304.88 = 76,257,293.76 : x
  2. Step 2: Convert to fraction form
    80,626,900.32/121,018,304.88 = 76,257,293.76/x
  3. Step 3: Cross multiply
    80,626,900.32x = 121,018,304.88 × 76,257,293.76
  4. Step 4: Simplify right side
    80,626,900.32x = 9,228,528,425,571,402
  5. Step 5: Solve for x
    x = 9,228,528,425,571,402/80,626,900.32
  6. Step 6: Final answer
    x = 114,459,670.27

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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.