Home / 77,213,407.14-115,820,017.56-19,705,684.46

Finding the Fourth Proportional to 77,213,407.14, 115,820,017.56 and 19,705,684.46

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Solution

The fourth proportional to 77,213,407.14, 115,820,017.56 and 19,705,684.46 is: 29,558,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213,407.14 : 115,820,017.56 = 19,705,684.46 : x
  2. Step 2: Convert to fraction form
    77,213,407.14/115,820,017.56 = 19,705,684.46/x
  3. Step 3: Cross multiply
    77,213,407.14x = 115,820,017.56 × 19,705,684.46
  4. Step 4: Simplify right side
    77,213,407.14x = 2,282,312,719,609,919
  5. Step 5: Solve for x
    x = 2,282,312,719,609,919/77,213,407.14
  6. Step 6: Final answer
    x = 29,558,502.91

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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.