Home / 821,938,131.30-1,134,359,162.34-500,088,947.27

Finding the Fourth Proportional to 821,938,131.30, 1,134,359,162.34 and 500,088,947.27

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Solution

The fourth proportional to 821,938,131.30, 1,134,359,162.34 and 500,088,947.27 is: 690,174,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,938,131.30 : 1,134,359,162.34 = 500,088,947.27 : x
  2. Step 2: Convert to fraction form
    821,938,131.30/1,134,359,162.34 = 500,088,947.27/x
  3. Step 3: Cross multiply
    821,938,131.30x = 1,134,359,162.34 × 500,088,947.27
  4. Step 4: Simplify right side
    821,938,131.30x = 567,280,479,319,542,528
  5. Step 5: Solve for x
    x = 567,280,479,319,542,528/821,938,131.30
  6. Step 6: Final answer
    x = 690,174,184.30

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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.