Home / 981,999,693.24-1,473,275,889.18-429,350,654.40

Finding the Fourth Proportional to 981,999,693.24, 1,473,275,889.18 and 429,350,654.40

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Solution

The fourth proportional to 981,999,693.24, 1,473,275,889.18 and 429,350,654.40 is: 644,146,807.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,999,693.24 : 1,473,275,889.18 = 429,350,654.40 : x
  2. Step 2: Convert to fraction form
    981,999,693.24/1,473,275,889.18 = 429,350,654.40/x
  3. Step 3: Cross multiply
    981,999,693.24x = 1,473,275,889.18 × 429,350,654.40
  4. Step 4: Simplify right side
    981,999,693.24x = 632,551,967,131,174,912
  5. Step 5: Solve for x
    x = 632,551,967,131,174,912/981,999,693.24
  6. Step 6: Final answer
    x = 644,146,807.26

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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.