Home / 130,508,045.91-180,105,728.72-71,775,253.71

Finding the Fourth Proportional to 130,508,045.91, 180,105,728.72 and 71,775,253.71

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Solution

The fourth proportional to 130,508,045.91, 180,105,728.72 and 71,775,253.71 is: 99,052,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,508,045.91 : 180,105,728.72 = 71,775,253.71 : x
  2. Step 2: Convert to fraction form
    130,508,045.91/180,105,728.72 = 71,775,253.71/x
  3. Step 3: Cross multiply
    130,508,045.91x = 180,105,728.72 × 71,775,253.71
  4. Step 4: Simplify right side
    130,508,045.91x = 12,927,134,373,143,556
  5. Step 5: Solve for x
    x = 12,927,134,373,143,556/130,508,045.91
  6. Step 6: Final answer
    x = 99,052,393.92

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1.5x scale

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.