Home / 86,909,097.20-130,363,645.80-43,761,628.40

Finding the Fourth Proportional to 86,909,097.20, 130,363,645.80 and 43,761,628.40

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Solution

The fourth proportional to 86,909,097.20, 130,363,645.80 and 43,761,628.40 is: 65,642,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,097.20 : 130,363,645.80 = 43,761,628.40 : x
  2. Step 2: Convert to fraction form
    86,909,097.20/130,363,645.80 = 43,761,628.40/x
  3. Step 3: Cross multiply
    86,909,097.20x = 130,363,645.80 × 43,761,628.40
  4. Step 4: Simplify right side
    86,909,097.20x = 5,704,925,424,368,820
  5. Step 5: Solve for x
    x = 5,704,925,424,368,820/86,909,097.20
  6. Step 6: Final answer
    x = 65,642,442.60

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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.