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Finding the Fourth Proportional to 288,866,944.20, 398,602,752.49 and 161,714,585.19

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Solution

The fourth proportional to 288,866,944.20, 398,602,752.49 and 161,714,585.19 is: 223,147,300.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,866,944.20 : 398,602,752.49 = 161,714,585.19 : x
  2. Step 2: Convert to fraction form
    288,866,944.20/398,602,752.49 = 161,714,585.19/x
  3. Step 3: Cross multiply
    288,866,944.20x = 398,602,752.49 × 161,714,585.19
  4. Step 4: Simplify right side
    288,866,944.20x = 64,459,878,774,714,728
  5. Step 5: Solve for x
    x = 64,459,878,774,714,728/288,866,944.20
  6. Step 6: Final answer
    x = 223,147,300.41

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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.