Home / 129,779,386.32-179,084,204.46-76,846,597.90

Finding the Fourth Proportional to 129,779,386.32, 179,084,204.46 and 76,846,597.90

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Solution

The fourth proportional to 129,779,386.32, 179,084,204.46 and 76,846,597.90 is: 106,041,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,779,386.32 : 179,084,204.46 = 76,846,597.90 : x
  2. Step 2: Convert to fraction form
    129,779,386.32/179,084,204.46 = 76,846,597.90/x
  3. Step 3: Cross multiply
    129,779,386.32x = 179,084,204.46 × 76,846,597.90
  4. Step 4: Simplify right side
    129,779,386.32x = 13,762,011,850,891,038
  5. Step 5: Solve for x
    x = 13,762,011,850,891,038/129,779,386.32
  6. Step 6: Final answer
    x = 106,041,585.20

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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.