Home / 42,971,746-64,459,397.76-12,679,609

Finding the Fourth Proportional to 42,971,746, 64,459,397.76 and 12,679,609

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Solution

The fourth proportional to 42,971,746, 64,459,397.76 and 12,679,609 is: 19,019,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971,746 : 64,459,397.76 = 12,679,609 : x
  2. Step 2: Convert to fraction form
    42,971,746/64,459,397.76 = 12,679,609/x
  3. Step 3: Cross multiply
    42,971,746x = 64,459,397.76 × 12,679,609
  4. Step 4: Simplify right side
    42,971,746x = 817,319,959,972,275.88
  5. Step 5: Solve for x
    x = 817,319,959,972,275.88/42,971,746
  6. Step 6: Final answer
    x = 19,019,938.36

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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.