Home / 77,001,661.52-115,502,689.18-19,493,938.83

Finding the Fourth Proportional to 77,001,661.52, 115,502,689.18 and 19,493,938.83

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Solution

The fourth proportional to 77,001,661.52, 115,502,689.18 and 19,493,938.83 is: 29,240,958.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001,661.52 : 115,502,689.18 = 19,493,938.83 : x
  2. Step 2: Convert to fraction form
    77,001,661.52/115,502,689.18 = 19,493,938.83/x
  3. Step 3: Cross multiply
    77,001,661.52x = 115,502,689.18 × 19,493,938.83
  4. Step 4: Simplify right side
    77,001,661.52x = 2,251,602,357,575,422.75
  5. Step 5: Solve for x
    x = 2,251,602,357,575,422.75/77,001,661.52
  6. Step 6: Final answer
    x = 29,240,958.09

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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.