Home / 1,145,887,886.47-1,717,077,489.89-771,007,221.11

Finding the Fourth Proportional to 1,145,887,886.47, 1,717,077,489.89 and 771,007,221.11

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Solution

The fourth proportional to 1,145,887,886.47, 1,717,077,489.89 and 771,007,221.11 is: 1,155,330,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,887,886.47 : 1,717,077,489.89 = 771,007,221.11 : x
  2. Step 2: Convert to fraction form
    1,145,887,886.47/1,717,077,489.89 = 771,007,221.11/x
  3. Step 3: Cross multiply
    1,145,887,886.47x = 1,717,077,489.89 × 771,007,221.11
  4. Step 4: Simplify right side
    1,145,887,886.47x = 1,323,879,143,904,377,856
  5. Step 5: Solve for x
    x = 1,323,879,143,904,377,856/1,145,887,886.47
  6. Step 6: Final answer
    x = 1,155,330,429.39

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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.