Home / 689,905,129.40-1,034,857,694.10-553,856,233.40

Finding the Fourth Proportional to 689,905,129.40, 1,034,857,694.10 and 553,856,233.40

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Solution

The fourth proportional to 689,905,129.40, 1,034,857,694.10 and 553,856,233.40 is: 830,784,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,129.40 : 1,034,857,694.10 = 553,856,233.40 : x
  2. Step 2: Convert to fraction form
    689,905,129.40/1,034,857,694.10 = 553,856,233.40/x
  3. Step 3: Cross multiply
    689,905,129.40x = 1,034,857,694.10 × 553,856,233.40
  4. Step 4: Simplify right side
    689,905,129.40x = 573,162,384,559,235,392
  5. Step 5: Solve for x
    x = 573,162,384,559,235,392/689,905,129.40
  6. Step 6: Final answer
    x = 830,784,350.10

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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.