Home / 660,551,010.90-990,826,516.35-272,173,928.10

Finding the Fourth Proportional to 660,551,010.90, 990,826,516.35 and 272,173,928.10

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Solution

The fourth proportional to 660,551,010.90, 990,826,516.35 and 272,173,928.10 is: 408,260,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,551,010.90 : 990,826,516.35 = 272,173,928.10 : x
  2. Step 2: Convert to fraction form
    660,551,010.90/990,826,516.35 = 272,173,928.10/x
  3. Step 3: Cross multiply
    660,551,010.90x = 990,826,516.35 × 272,173,928.10
  4. Step 4: Simplify right side
    660,551,010.90x = 269,677,145,020,618,400
  5. Step 5: Solve for x
    x = 269,677,145,020,618,400/660,551,010.90
  6. Step 6: Final answer
    x = 408,260,892.15

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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.