Home / 6,391,348.12-8,820,013.08-3,490,740.28

Finding the Fourth Proportional to 6,391,348.12, 8,820,013.08 and 3,490,740.28

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Solution

The fourth proportional to 6,391,348.12, 8,820,013.08 and 3,490,740.28 is: 4,817,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,348.12 : 8,820,013.08 = 3,490,740.28 : x
  2. Step 2: Convert to fraction form
    6,391,348.12/8,820,013.08 = 3,490,740.28/x
  3. Step 3: Cross multiply
    6,391,348.12x = 8,820,013.08 × 3,490,740.28
  4. Step 4: Simplify right side
    6,391,348.12x = 30,788,374,928,482.86
  5. Step 5: Solve for x
    x = 30,788,374,928,482.86/6,391,348.12
  6. Step 6: Final answer
    x = 4,817,195.74

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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.