Home / 153,996,428.50-212,515,070.32-84,380,314.71

Finding the Fourth Proportional to 153,996,428.50, 212,515,070.32 and 84,380,314.71

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Solution

The fourth proportional to 153,996,428.50, 212,515,070.32 and 84,380,314.71 is: 116,444,833.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,996,428.50 : 212,515,070.32 = 84,380,314.71 : x
  2. Step 2: Convert to fraction form
    153,996,428.50/212,515,070.32 = 84,380,314.71/x
  3. Step 3: Cross multiply
    153,996,428.50x = 212,515,070.32 × 84,380,314.71
  4. Step 4: Simplify right side
    153,996,428.50x = 17,932,088,514,219,378
  5. Step 5: Solve for x
    x = 17,932,088,514,219,378/153,996,428.50
  6. Step 6: Final answer
    x = 116,444,833.75

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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.