Home / 407,894,060.80-611,779,620.39-261,365,570.38

Finding the Fourth Proportional to 407,894,060.80, 611,779,620.39 and 261,365,570.38

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Solution

The fourth proportional to 407,894,060.80, 611,779,620.39 and 261,365,570.38 is: 392,008,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,894,060.80 : 611,779,620.39 = 261,365,570.38 : x
  2. Step 2: Convert to fraction form
    407,894,060.80/611,779,620.39 = 261,365,570.38/x
  3. Step 3: Cross multiply
    407,894,060.80x = 611,779,620.39 × 261,365,570.38
  4. Step 4: Simplify right side
    407,894,060.80x = 159,898,129,432,352,384
  5. Step 5: Solve for x
    x = 159,898,129,432,352,384/407,894,060.80
  6. Step 6: Final answer
    x = 392,008,967.04

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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.