Home / 86,909,545.70-130,380,064.95-43,669,931.30

Finding the Fourth Proportional to 86,909,545.70, 130,380,064.95 and 43,669,931.30

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Solution

The fourth proportional to 86,909,545.70, 130,380,064.95 and 43,669,931.30 is: 65,512,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,545.70 : 130,380,064.95 = 43,669,931.30 : x
  2. Step 2: Convert to fraction form
    86,909,545.70/130,380,064.95 = 43,669,931.30/x
  3. Step 3: Cross multiply
    86,909,545.70x = 130,380,064.95 × 43,669,931.30
  4. Step 4: Simplify right side
    86,909,545.70x = 5,693,688,479,256,038
  5. Step 5: Solve for x
    x = 5,693,688,479,256,038/86,909,545.70
  6. Step 6: Final answer
    x = 65,512,809.13

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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.