Home / 11,720,780.60-17,578,838.10-5,655,500.60

Finding the Fourth Proportional to 11,720,780.60, 17,578,838.10 and 5,655,500.60

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Solution

The fourth proportional to 11,720,780.60, 17,578,838.10 and 5,655,500.60 is: 8,482,125.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720,780.60 : 17,578,838.10 = 5,655,500.60 : x
  2. Step 2: Convert to fraction form
    11,720,780.60/17,578,838.10 = 5,655,500.60/x
  3. Step 3: Cross multiply
    11,720,780.60x = 17,578,838.10 × 5,655,500.60
  4. Step 4: Simplify right side
    11,720,780.60x = 99,417,129,421,852.86
  5. Step 5: Solve for x
    x = 99,417,129,421,852.86/11,720,780.60
  6. Step 6: Final answer
    x = 8,482,125.28

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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.