Home / 155,945,350.71-215,196,058.16-85,367,307.50

Finding the Fourth Proportional to 155,945,350.71, 215,196,058.16 and 85,367,307.50

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Solution

The fourth proportional to 155,945,350.71, 215,196,058.16 and 85,367,307.50 is: 117,802,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,945,350.71 : 215,196,058.16 = 85,367,307.50 : x
  2. Step 2: Convert to fraction form
    155,945,350.71/215,196,058.16 = 85,367,307.50/x
  3. Step 3: Cross multiply
    155,945,350.71x = 215,196,058.16 × 85,367,307.50
  4. Step 4: Simplify right side
    155,945,350.71x = 18,370,708,069,962,244
  5. Step 5: Solve for x
    x = 18,370,708,069,962,244/155,945,350.71
  6. Step 6: Final answer
    x = 117,802,217.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.