Home / 689,905,012.15-1,034,857,518.23-553,856,116.15

Finding the Fourth Proportional to 689,905,012.15, 1,034,857,518.23 and 553,856,116.15

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Solution

The fourth proportional to 689,905,012.15, 1,034,857,518.23 and 553,856,116.15 is: 830,784,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,012.15 : 1,034,857,518.23 = 553,856,116.15 : x
  2. Step 2: Convert to fraction form
    689,905,012.15/1,034,857,518.23 = 553,856,116.15/x
  3. Step 3: Cross multiply
    689,905,012.15x = 1,034,857,518.23 × 553,856,116.15
  4. Step 4: Simplify right side
    689,905,012.15x = 573,162,165,815,495,616
  5. Step 5: Solve for x
    x = 573,162,165,815,495,616/689,905,012.15
  6. Step 6: Final answer
    x = 830,784,174.23

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Double scale
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Similar ratio
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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.