Home / 42,971,796-64,459,472.76-12,679,659

Finding the Fourth Proportional to 42,971,796, 64,459,472.76 and 12,679,659

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Solution

The fourth proportional to 42,971,796, 64,459,472.76 and 12,679,659 is: 19,020,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971,796 : 64,459,472.76 = 12,679,659 : x
  2. Step 2: Convert to fraction form
    42,971,796/64,459,472.76 = 12,679,659/x
  3. Step 3: Cross multiply
    42,971,796x = 64,459,472.76 × 12,679,659
  4. Step 4: Simplify right side
    42,971,796x = 817,324,133,916,588.88
  5. Step 5: Solve for x
    x = 817,324,133,916,588.88/42,971,796
  6. Step 6: Final answer
    x = 19,020,013.36

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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.