Home / 47,813,639.40-71,720,459.10-28,681,763.40

Finding the Fourth Proportional to 47,813,639.40, 71,720,459.10 and 28,681,763.40

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Solution

The fourth proportional to 47,813,639.40, 71,720,459.10 and 28,681,763.40 is: 43,022,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,813,639.40 : 71,720,459.10 = 28,681,763.40 : x
  2. Step 2: Convert to fraction form
    47,813,639.40/71,720,459.10 = 28,681,763.40/x
  3. Step 3: Cross multiply
    47,813,639.40x = 71,720,459.10 × 28,681,763.40
  4. Step 4: Simplify right side
    47,813,639.40x = 2,057,069,238,845,576.75
  5. Step 5: Solve for x
    x = 2,057,069,238,845,576.75/47,813,639.40
  6. Step 6: Final answer
    x = 43,022,645.10

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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.