Home / 86,909,549.70-130,380,070.95-43,669,935.30

Finding the Fourth Proportional to 86,909,549.70, 130,380,070.95 and 43,669,935.30

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Solution

The fourth proportional to 86,909,549.70, 130,380,070.95 and 43,669,935.30 is: 65,512,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,549.70 : 130,380,070.95 = 43,669,935.30 : x
  2. Step 2: Convert to fraction form
    86,909,549.70/130,380,070.95 = 43,669,935.30/x
  3. Step 3: Cross multiply
    86,909,549.70x = 130,380,070.95 × 43,669,935.30
  4. Step 4: Simplify right side
    86,909,549.70x = 5,693,689,262,795,909
  5. Step 5: Solve for x
    x = 5,693,689,262,795,909/86,909,549.70
  6. Step 6: Final answer
    x = 65,512,815.13

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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.