Home / 42,971,761-64,459,420.26-12,679,624

Finding the Fourth Proportional to 42,971,761, 64,459,420.26 and 12,679,624

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Solution

The fourth proportional to 42,971,761, 64,459,420.26 and 12,679,624 is: 19,019,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971,761 : 64,459,420.26 = 12,679,624 : x
  2. Step 2: Convert to fraction form
    42,971,761/64,459,420.26 = 12,679,624/x
  3. Step 3: Cross multiply
    42,971,761x = 64,459,420.26 × 12,679,624
  4. Step 4: Simplify right side
    42,971,761x = 817,321,212,154,782.25
  5. Step 5: Solve for x
    x = 817,321,212,154,782.25/42,971,761
  6. Step 6: Final answer
    x = 19,019,960.86

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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.