Home / 148,359,405.80-204,708,909.02-85,612,612.84

Finding the Fourth Proportional to 148,359,405.80, 204,708,909.02 and 85,612,612.84

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Solution

The fourth proportional to 148,359,405.80, 204,708,909.02 and 85,612,612.84 is: 118,129,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,359,405.80 : 204,708,909.02 = 85,612,612.84 : x
  2. Step 2: Convert to fraction form
    148,359,405.80/204,708,909.02 = 85,612,612.84/x
  3. Step 3: Cross multiply
    148,359,405.80x = 204,708,909.02 × 85,612,612.84
  4. Step 4: Simplify right side
    148,359,405.80x = 17,525,664,571,888,208
  5. Step 5: Solve for x
    x = 17,525,664,571,888,208/148,359,405.80
  6. Step 6: Final answer
    x = 118,129,784.07

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Why These Related Problems?

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