Home / 42,971,795-64,459,471.26-12,679,658

Finding the Fourth Proportional to 42,971,795, 64,459,471.26 and 12,679,658

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Solution

The fourth proportional to 42,971,795, 64,459,471.26 and 12,679,658 is: 19,020,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971,795 : 64,459,471.26 = 12,679,658 : x
  2. Step 2: Convert to fraction form
    42,971,795/64,459,471.26 = 12,679,658/x
  3. Step 3: Cross multiply
    42,971,795x = 64,459,471.26 × 12,679,658
  4. Step 4: Simplify right side
    42,971,795x = 817,324,050,437,629
  5. Step 5: Solve for x
    x = 817,324,050,437,629/42,971,795
  6. Step 6: Final answer
    x = 19,020,011.86

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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.