Home / 438,286,714.32-657,275,000.18-127,329,636.54

Finding the Fourth Proportional to 438,286,714.32, 657,275,000.18 and 127,329,636.54

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Solution

The fourth proportional to 438,286,714.32, 657,275,000.18 and 127,329,636.54 is: 190,949,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,286,714.32 : 657,275,000.18 = 127,329,636.54 : x
  2. Step 2: Convert to fraction form
    438,286,714.32/657,275,000.18 = 127,329,636.54/x
  3. Step 3: Cross multiply
    438,286,714.32x = 657,275,000.18 × 127,329,636.54
  4. Step 4: Simplify right side
    438,286,714.32x = 83,690,586,879,747,840
  5. Step 5: Solve for x
    x = 83,690,586,879,747,840/438,286,714.32
  6. Step 6: Final answer
    x = 190,949,404.00

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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.