Home / 492,435,779.28-738,857,147.40-215,943,925.20

Finding the Fourth Proportional to 492,435,779.28, 738,857,147.40 and 215,943,925.20

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Solution

The fourth proportional to 492,435,779.28, 738,857,147.40 and 215,943,925.20 is: 324,005,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,435,779.28 : 738,857,147.40 = 215,943,925.20 : x
  2. Step 2: Convert to fraction form
    492,435,779.28/738,857,147.40 = 215,943,925.20/x
  3. Step 3: Cross multiply
    492,435,779.28x = 738,857,147.40 × 215,943,925.20
  4. Step 4: Simplify right side
    492,435,779.28x = 159,551,712,571,630,976
  5. Step 5: Solve for x
    x = 159,551,712,571,630,976/492,435,779.28
  6. Step 6: Final answer
    x = 324,005,117.59

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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.