Home / 57,120,145.86-78,825,894.58-31,014,714.18

Finding the Fourth Proportional to 57,120,145.86, 78,825,894.58 and 31,014,714.18

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Solution

The fourth proportional to 57,120,145.86, 78,825,894.58 and 31,014,714.18 is: 42,800,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120,145.86 : 78,825,894.58 = 31,014,714.18 : x
  2. Step 2: Convert to fraction form
    57,120,145.86/78,825,894.58 = 31,014,714.18/x
  3. Step 3: Cross multiply
    57,120,145.86x = 78,825,894.58 × 31,014,714.18
  4. Step 4: Simplify right side
    57,120,145.86x = 2,444,762,590,381,511
  5. Step 5: Solve for x
    x = 2,444,762,590,381,511/57,120,145.86
  6. Step 6: Final answer
    x = 42,800,356.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.