Home / 913,505,805.16-1,260,634,832.40-495,818,089.36

Finding the Fourth Proportional to 913,505,805.16, 1,260,634,832.40 and 495,818,089.36

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Solution

The fourth proportional to 913,505,805.16, 1,260,634,832.40 and 495,818,089.36 is: 684,227,238.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,505,805.16 : 1,260,634,832.40 = 495,818,089.36 : x
  2. Step 2: Convert to fraction form
    913,505,805.16/1,260,634,832.40 = 495,818,089.36/x
  3. Step 3: Cross multiply
    913,505,805.16x = 1,260,634,832.40 × 495,818,089.36
  4. Step 4: Simplify right side
    913,505,805.16x = 625,045,553,981,231,872
  5. Step 5: Solve for x
    x = 625,045,553,981,231,872/913,505,805.16
  6. Step 6: Final answer
    x = 684,227,238.02

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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.