Home / 930,554,166.39-1,284,160,869.14-512,865,454.83

Finding the Fourth Proportional to 930,554,166.39, 1,284,160,869.14 and 512,865,454.83

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Solution

The fourth proportional to 930,554,166.39, 1,284,160,869.14 and 512,865,454.83 is: 707,752,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,554,166.39 : 1,284,160,869.14 = 512,865,454.83 : x
  2. Step 2: Convert to fraction form
    930,554,166.39/1,284,160,869.14 = 512,865,454.83/x
  3. Step 3: Cross multiply
    930,554,166.39x = 1,284,160,869.14 × 512,865,454.83
  4. Step 4: Simplify right side
    930,554,166.39x = 658,601,748,223,809,920
  5. Step 5: Solve for x
    x = 658,601,748,223,809,920/930,554,166.39
  6. Step 6: Final answer
    x = 707,752,188.98

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1.5x scale

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.