Home / 80,838,212.80-121,333,426.80-42,527,221.60

Finding the Fourth Proportional to 80,838,212.80, 121,333,426.80 and 42,527,221.60

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Solution

The fourth proportional to 80,838,212.80, 121,333,426.80 and 42,527,221.60 is: 63,830,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838,212.80 : 121,333,426.80 = 42,527,221.60 : x
  2. Step 2: Convert to fraction form
    80,838,212.80/121,333,426.80 = 42,527,221.60/x
  3. Step 3: Cross multiply
    80,838,212.80x = 121,333,426.80 × 42,527,221.60
  4. Step 4: Simplify right side
    80,838,212.80x = 5,159,973,529,010,979
  5. Step 5: Solve for x
    x = 5,159,973,529,010,979/80,838,212.80
  6. Step 6: Final answer
    x = 63,830,870.95

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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.