Home / 456,240,765.12-684,087,845.28-145,214,032.64

Finding the Fourth Proportional to 456,240,765.12, 684,087,845.28 and 145,214,032.64

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Solution

The fourth proportional to 456,240,765.12, 684,087,845.28 and 145,214,032.64 is: 217,734,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,240,765.12 : 684,087,845.28 = 145,214,032.64 : x
  2. Step 2: Convert to fraction form
    456,240,765.12/684,087,845.28 = 145,214,032.64/x
  3. Step 3: Cross multiply
    456,240,765.12x = 684,087,845.28 × 145,214,032.64
  4. Step 4: Simplify right side
    456,240,765.12x = 99,339,154,693,117,168
  5. Step 5: Solve for x
    x = 99,339,154,693,117,168/456,240,765.12
  6. Step 6: Final answer
    x = 217,734,061.24

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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.