Home / 28,261,133.40-42,391,700.10-6,985,997.40

Finding the Fourth Proportional to 28,261,133.40, 42,391,700.10 and 6,985,997.40

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Solution

The fourth proportional to 28,261,133.40, 42,391,700.10 and 6,985,997.40 is: 10,478,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261,133.40 : 42,391,700.10 = 6,985,997.40 : x
  2. Step 2: Convert to fraction form
    28,261,133.40/42,391,700.10 = 6,985,997.40/x
  3. Step 3: Cross multiply
    28,261,133.40x = 42,391,700.10 × 6,985,997.40
  4. Step 4: Simplify right side
    28,261,133.40x = 296,148,306,680,179.75
  5. Step 5: Solve for x
    x = 296,148,306,680,179.75/28,261,133.40
  6. Step 6: Final answer
    x = 10,478,996.10

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1.5x scale

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.