Home / 651,193,211.10-976,789,816.65-392,912,885.10

Finding the Fourth Proportional to 651,193,211.10, 976,789,816.65 and 392,912,885.10

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Solution

The fourth proportional to 651,193,211.10, 976,789,816.65 and 392,912,885.10 is: 589,369,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,193,211.10 : 976,789,816.65 = 392,912,885.10 : x
  2. Step 2: Convert to fraction form
    651,193,211.10/976,789,816.65 = 392,912,885.10/x
  3. Step 3: Cross multiply
    651,193,211.10x = 976,789,816.65 × 392,912,885.10
  4. Step 4: Simplify right side
    651,193,211.10x = 383,793,304,996,251,520
  5. Step 5: Solve for x
    x = 383,793,304,996,251,520/651,193,211.10
  6. Step 6: Final answer
    x = 589,369,327.65

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Half scale
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Double scale
Find fourth proportional to 651,193,212.10, 976,789,818.15 and 392,912,886.10
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.