Home / 1,225,425,922-1,690,856,489.22-730,434,688.72

Finding the Fourth Proportional to 1,225,425,922, 1,690,856,489.22 and 730,434,688.72

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Solution

The fourth proportional to 1,225,425,922, 1,690,856,489.22 and 730,434,688.72 is: 1,007,862,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,425,922 : 1,690,856,489.22 = 730,434,688.72 : x
  2. Step 2: Convert to fraction form
    1,225,425,922/1,690,856,489.22 = 730,434,688.72/x
  3. Step 3: Cross multiply
    1,225,425,922x = 1,690,856,489.22 × 730,434,688.72
  4. Step 4: Simplify right side
    1,225,425,922x = 1,235,060,233,373,602,816
  5. Step 5: Solve for x
    x = 1,235,060,233,373,602,816/1,225,425,922
  6. Step 6: Final answer
    x = 1,007,862,010.42

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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.