Home / 42,971,794-64,459,469.76-12,679,657

Finding the Fourth Proportional to 42,971,794, 64,459,469.76 and 12,679,657

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Solution

The fourth proportional to 42,971,794, 64,459,469.76 and 12,679,657 is: 19,020,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971,794 : 64,459,469.76 = 12,679,657 : x
  2. Step 2: Convert to fraction form
    42,971,794/64,459,469.76 = 12,679,657/x
  3. Step 3: Cross multiply
    42,971,794x = 64,459,469.76 × 12,679,657
  4. Step 4: Simplify right side
    42,971,794x = 817,323,966,958,672.25
  5. Step 5: Solve for x
    x = 817,323,966,958,672.25/42,971,794
  6. Step 6: Final answer
    x = 19,020,010.36

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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.