Home / 981,999,663.12-1,473,275,844-429,350,624.28

Finding the Fourth Proportional to 981,999,663.12, 1,473,275,844 and 429,350,624.28

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Solution

The fourth proportional to 981,999,663.12, 1,473,275,844 and 429,350,624.28 is: 644,146,762.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,999,663.12 : 1,473,275,844 = 429,350,624.28 : x
  2. Step 2: Convert to fraction form
    981,999,663.12/1,473,275,844 = 429,350,624.28/x
  3. Step 3: Cross multiply
    981,999,663.12x = 1,473,275,844 × 429,350,624.28
  4. Step 4: Simplify right side
    981,999,663.12x = 632,551,903,358,043,904
  5. Step 5: Solve for x
    x = 632,551,903,358,043,904/981,999,663.12
  6. Step 6: Final answer
    x = 644,146,762.08

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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.