Home / 91,340,100.36-137,127,070.14-78,468,599.24

Finding the Fourth Proportional to 91,340,100.36, 137,127,070.14 and 78,468,599.24

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Solution

The fourth proportional to 91,340,100.36, 137,127,070.14 and 78,468,599.24 is: 117,803,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,340,100.36 : 137,127,070.14 = 78,468,599.24 : x
  2. Step 2: Convert to fraction form
    91,340,100.36/137,127,070.14 = 78,468,599.24/x
  3. Step 3: Cross multiply
    91,340,100.36x = 137,127,070.14 × 78,468,599.24
  4. Step 4: Simplify right side
    91,340,100.36x = 10,760,169,111,771,028
  5. Step 5: Solve for x
    x = 10,760,169,111,771,028/91,340,100.36
  6. Step 6: Final answer
    x = 117,803,342.34

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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.