Home / 88,178,221.25-121,506,641.86-68,210,732.60

Finding the Fourth Proportional to 88,178,221.25, 121,506,641.86 and 68,210,732.60

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Solution

The fourth proportional to 88,178,221.25, 121,506,641.86 and 68,210,732.60 is: 93,992,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,178,221.25 : 121,506,641.86 = 68,210,732.60 : x
  2. Step 2: Convert to fraction form
    88,178,221.25/121,506,641.86 = 68,210,732.60/x
  3. Step 3: Cross multiply
    88,178,221.25x = 121,506,641.86 × 68,210,732.60
  4. Step 4: Simplify right side
    88,178,221.25x = 8,288,057,057,036,426
  5. Step 5: Solve for x
    x = 8,288,057,057,036,426/88,178,221.25
  6. Step 6: Final answer
    x = 93,992,109.84

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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.