Home / 686,957,123.27-1,030,871,517.73-293,486,914.15

Finding the Fourth Proportional to 686,957,123.27, 1,030,871,517.73 and 293,486,914.15

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Solution

The fourth proportional to 686,957,123.27, 1,030,871,517.73 and 293,486,914.15 is: 440,416,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,957,123.27 : 1,030,871,517.73 = 293,486,914.15 : x
  2. Step 2: Convert to fraction form
    686,957,123.27/1,030,871,517.73 = 293,486,914.15/x
  3. Step 3: Cross multiply
    686,957,123.27x = 1,030,871,517.73 × 293,486,914.15
  4. Step 4: Simplify right side
    686,957,123.27x = 302,547,300,620,393,792
  5. Step 5: Solve for x
    x = 302,547,300,620,393,792/686,957,123.27
  6. Step 6: Final answer
    x = 440,416,570.95

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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.