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Finding the Fourth Proportional to 265,754,732.80, 398,688,086.40 and 112,321,811.20

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Solution

The fourth proportional to 265,754,732.80, 398,688,086.40 and 112,321,811.20 is: 168,506,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,754,732.80 : 398,688,086.40 = 112,321,811.20 : x
  2. Step 2: Convert to fraction form
    265,754,732.80/398,688,086.40 = 112,321,811.20/x
  3. Step 3: Cross multiply
    265,754,732.80x = 398,688,086.40 × 112,321,811.20
  4. Step 4: Simplify right side
    265,754,732.80x = 44,781,367,968,310,088
  5. Step 5: Solve for x
    x = 44,781,367,968,310,088/265,754,732.80
  6. Step 6: Final answer
    x = 168,506,379.91

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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.