Home / 86,229,643.40-129,344,465.10-43,105,502.60

Finding the Fourth Proportional to 86,229,643.40, 129,344,465.10 and 43,105,502.60

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Solution

The fourth proportional to 86,229,643.40, 129,344,465.10 and 43,105,502.60 is: 64,658,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,229,643.40 : 129,344,465.10 = 43,105,502.60 : x
  2. Step 2: Convert to fraction form
    86,229,643.40/129,344,465.10 = 43,105,502.60/x
  3. Step 3: Cross multiply
    86,229,643.40x = 129,344,465.10 × 43,105,502.60
  4. Step 4: Simplify right side
    86,229,643.40x = 5,575,458,176,663,659
  5. Step 5: Solve for x
    x = 5,575,458,176,663,659/86,229,643.40
  6. Step 6: Final answer
    x = 64,658,253.90

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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.