Home / 81,566,428.80-122,349,643.20-49,317,801.60

Finding the Fourth Proportional to 81,566,428.80, 122,349,643.20 and 49,317,801.60

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Solution

The fourth proportional to 81,566,428.80, 122,349,643.20 and 49,317,801.60 is: 73,976,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566,428.80 : 122,349,643.20 = 49,317,801.60 : x
  2. Step 2: Convert to fraction form
    81,566,428.80/122,349,643.20 = 49,317,801.60/x
  3. Step 3: Cross multiply
    81,566,428.80x = 122,349,643.20 × 49,317,801.60
  4. Step 4: Simplify right side
    81,566,428.80x = 6,034,015,429,168,389
  5. Step 5: Solve for x
    x = 6,034,015,429,168,389/81,566,428.80
  6. Step 6: Final answer
    x = 73,976,702.40

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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.