Home / 15,005,459.46-20,707,263.84-8,478,948.45

Finding the Fourth Proportional to 15,005,459.46, 20,707,263.84 and 8,478,948.45

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Solution

The fourth proportional to 15,005,459.46, 20,707,263.84 and 8,478,948.45 is: 11,700,796.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005,459.46 : 20,707,263.84 = 8,478,948.45 : x
  2. Step 2: Convert to fraction form
    15,005,459.46/20,707,263.84 = 8,478,948.45/x
  3. Step 3: Cross multiply
    15,005,459.46x = 20,707,263.84 × 8,478,948.45
  4. Step 4: Simplify right side
    15,005,459.46x = 175,575,822,639,909.03
  5. Step 5: Solve for x
    x = 175,575,822,639,909.03/15,005,459.46
  6. Step 6: Final answer
    x = 11,700,796.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.