Home / 130,887,731.16-180,635,867.10-75,143,908.98

Finding the Fourth Proportional to 130,887,731.16, 180,635,867.10 and 75,143,908.98

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Solution

The fourth proportional to 130,887,731.16, 180,635,867.10 and 75,143,908.98 is: 103,704,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,887,731.16 : 180,635,867.10 = 75,143,908.98 : x
  2. Step 2: Convert to fraction form
    130,887,731.16/180,635,867.10 = 75,143,908.98/x
  3. Step 3: Cross multiply
    130,887,731.16x = 180,635,867.10 × 75,143,908.98
  4. Step 4: Simplify right side
    130,887,731.16x = 13,573,685,155,885,776
  5. Step 5: Solve for x
    x = 13,573,685,155,885,776/130,887,731.16
  6. Step 6: Final answer
    x = 103,704,793.69

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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.