Home / 711,470,867,708.85-981,829,797,438.60-406,976,523,690.26

Finding the Fourth Proportional to 711,470,867,708.85, 981,829,797,438.60 and 406,976,523,690.26

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Solution

The fourth proportional to 711,470,867,708.85, 981,829,797,438.60 and 406,976,523,690.26 is: 561,627,602,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,470,867,708.85 : 981,829,797,438.60 = 406,976,523,690.26 : x
  2. Step 2: Convert to fraction form
    711,470,867,708.85/981,829,797,438.60 = 406,976,523,690.26/x
  3. Step 3: Cross multiply
    711,470,867,708.85x = 981,829,797,438.60 × 406,976,523,690.26
  4. Step 4: Simplify right side
    711,470,867,708.85x = 399,581,677,817,073,600,823,296
  5. Step 5: Solve for x
    x = 399,581,677,817,073,600,823,296/711,470,867,708.85
  6. Step 6: Final answer
    x = 561,627,602,692.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.