Home / 42,745,473.60-64,160,200.80-21,204,398.40

Finding the Fourth Proportional to 42,745,473.60, 64,160,200.80 and 21,204,398.40

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Solution

The fourth proportional to 42,745,473.60, 64,160,200.80 and 21,204,398.40 is: 31,827,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,745,473.60 : 64,160,200.80 = 21,204,398.40 : x
  2. Step 2: Convert to fraction form
    42,745,473.60/64,160,200.80 = 21,204,398.40/x
  3. Step 3: Cross multiply
    42,745,473.60x = 64,160,200.80 × 21,204,398.40
  4. Step 4: Simplify right side
    42,745,473.60x = 1,360,478,459,187,198.50
  5. Step 5: Solve for x
    x = 1,360,478,459,187,198.50/42,745,473.60
  6. Step 6: Final answer
    x = 31,827,427.44

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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.