Home / 868,900,095.80-1,199,123,125.98-492,563,977.53

Finding the Fourth Proportional to 868,900,095.80, 1,199,123,125.98 and 492,563,977.53

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Solution

The fourth proportional to 868,900,095.80, 1,199,123,125.98 and 492,563,977.53 is: 679,761,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,900,095.80 : 1,199,123,125.98 = 492,563,977.53 : x
  2. Step 2: Convert to fraction form
    868,900,095.80/1,199,123,125.98 = 492,563,977.53/x
  3. Step 3: Cross multiply
    868,900,095.80x = 1,199,123,125.98 × 492,563,977.53
  4. Step 4: Simplify right side
    868,900,095.80x = 590,644,856,480,916,096
  5. Step 5: Solve for x
    x = 590,644,856,480,916,096/868,900,095.80
  6. Step 6: Final answer
    x = 679,761,527.64

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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.