Home / 1,617,050,165.28-2,425,575,480.96-390,218,621.76

Finding the Fourth Proportional to 1,617,050,165.28, 2,425,575,480.96 and 390,218,621.76

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Solution

The fourth proportional to 1,617,050,165.28, 2,425,575,480.96 and 390,218,621.76 is: 585,327,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,050,165.28 : 2,425,575,480.96 = 390,218,621.76 : x
  2. Step 2: Convert to fraction form
    1,617,050,165.28/2,425,575,480.96 = 390,218,621.76/x
  3. Step 3: Cross multiply
    1,617,050,165.28x = 2,425,575,480.96 × 390,218,621.76
  4. Step 4: Simplify right side
    1,617,050,165.28x = 946,504,721,155,060,352
  5. Step 5: Solve for x
    x = 946,504,721,155,060,352/1,617,050,165.28
  6. Step 6: Final answer
    x = 585,327,988.88

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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.