Home / 42,985,684.80-64,478,527.20-42,587,553.60

Finding the Fourth Proportional to 42,985,684.80, 64,478,527.20 and 42,587,553.60

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Solution

The fourth proportional to 42,985,684.80, 64,478,527.20 and 42,587,553.60 is: 63,881,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,985,684.80 : 64,478,527.20 = 42,587,553.60 : x
  2. Step 2: Convert to fraction form
    42,985,684.80/64,478,527.20 = 42,587,553.60/x
  3. Step 3: Cross multiply
    42,985,684.80x = 64,478,527.20 × 42,587,553.60
  4. Step 4: Simplify right side
    42,985,684.80x = 2,745,982,733,179,058
  5. Step 5: Solve for x
    x = 2,745,982,733,179,058/42,985,684.80
  6. Step 6: Final answer
    x = 63,881,330.40

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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.