Home / 1,120,438,232.70-1,680,951,281.85-430,367,999.10

Finding the Fourth Proportional to 1,120,438,232.70, 1,680,951,281.85 and 430,367,999.10

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Solution

The fourth proportional to 1,120,438,232.70, 1,680,951,281.85 and 430,367,999.10 is: 645,664,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,438,232.70 : 1,680,951,281.85 = 430,367,999.10 : x
  2. Step 2: Convert to fraction form
    1,120,438,232.70/1,680,951,281.85 = 430,367,999.10/x
  3. Step 3: Cross multiply
    1,120,438,232.70x = 1,680,951,281.85 × 430,367,999.10
  4. Step 4: Simplify right side
    1,120,438,232.70x = 723,427,639,754,364,672
  5. Step 5: Solve for x
    x = 723,427,639,754,364,672/1,120,438,232.70
  6. Step 6: Final answer
    x = 645,664,900.25

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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.