Home / 171,272,920.86-257,017,454.01-72,904,471.16

Finding the Fourth Proportional to 171,272,920.86, 257,017,454.01 and 72,904,471.16

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Solution

The fourth proportional to 171,272,920.86, 257,017,454.01 and 72,904,471.16 is: 109,402,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,272,920.86 : 257,017,454.01 = 72,904,471.16 : x
  2. Step 2: Convert to fraction form
    171,272,920.86/257,017,454.01 = 72,904,471.16/x
  3. Step 3: Cross multiply
    171,272,920.86x = 257,017,454.01 × 72,904,471.16
  4. Step 4: Simplify right side
    171,272,920.86x = 18,737,721,562,203,584
  5. Step 5: Solve for x
    x = 18,737,721,562,203,584/171,272,920.86
  6. Step 6: Final answer
    x = 109,402,709.24

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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.