Home / 986,898,177.80-1,480,347,266.70-831,929,982.20

Finding the Fourth Proportional to 986,898,177.80, 1,480,347,266.70 and 831,929,982.20

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Solution

The fourth proportional to 986,898,177.80, 1,480,347,266.70 and 831,929,982.20 is: 1,247,894,973.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,898,177.80 : 1,480,347,266.70 = 831,929,982.20 : x
  2. Step 2: Convert to fraction form
    986,898,177.80/1,480,347,266.70 = 831,929,982.20/x
  3. Step 3: Cross multiply
    986,898,177.80x = 1,480,347,266.70 × 831,929,982.20
  4. Step 4: Simplify right side
    986,898,177.80x = 1,231,545,275,235,549,696
  5. Step 5: Solve for x
    x = 1,231,545,275,235,549,696/986,898,177.80
  6. Step 6: Final answer
    x = 1,247,894,973.30

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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.