Home / 79,746,065.20-119,619,097.80-19,161,791.20

Finding the Fourth Proportional to 79,746,065.20, 119,619,097.80 and 19,161,791.20

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Solution

The fourth proportional to 79,746,065.20, 119,619,097.80 and 19,161,791.20 is: 28,742,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,746,065.20 : 119,619,097.80 = 19,161,791.20 : x
  2. Step 2: Convert to fraction form
    79,746,065.20/119,619,097.80 = 19,161,791.20/x
  3. Step 3: Cross multiply
    79,746,065.20x = 119,619,097.80 × 19,161,791.20
  4. Step 4: Simplify right side
    79,746,065.20x = 2,292,116,175,575,979
  5. Step 5: Solve for x
    x = 2,292,116,175,575,979/79,746,065.20
  6. Step 6: Final answer
    x = 28,742,686.80

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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.