Home / 689,905,175.40-1,034,857,763.10-553,856,279.40

Finding the Fourth Proportional to 689,905,175.40, 1,034,857,763.10 and 553,856,279.40

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Solution

The fourth proportional to 689,905,175.40, 1,034,857,763.10 and 553,856,279.40 is: 830,784,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,175.40 : 1,034,857,763.10 = 553,856,279.40 : x
  2. Step 2: Convert to fraction form
    689,905,175.40/1,034,857,763.10 = 553,856,279.40/x
  3. Step 3: Cross multiply
    689,905,175.40x = 1,034,857,763.10 × 553,856,279.40
  4. Step 4: Simplify right side
    689,905,175.40x = 573,162,470,378,772,608
  5. Step 5: Solve for x
    x = 573,162,470,378,772,608/689,905,175.40
  6. Step 6: Final answer
    x = 830,784,419.10

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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.