Home / 73,872,076.30-110,808,114.45-72,360,421.90

Finding the Fourth Proportional to 73,872,076.30, 110,808,114.45 and 72,360,421.90

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Solution

The fourth proportional to 73,872,076.30, 110,808,114.45 and 72,360,421.90 is: 108,540,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,076.30 : 110,808,114.45 = 72,360,421.90 : x
  2. Step 2: Convert to fraction form
    73,872,076.30/110,808,114.45 = 72,360,421.90/x
  3. Step 3: Cross multiply
    73,872,076.30x = 110,808,114.45 × 72,360,421.90
  4. Step 4: Simplify right side
    73,872,076.30x = 8,018,121,911,545,487
  5. Step 5: Solve for x
    x = 8,018,121,911,545,487/73,872,076.30
  6. Step 6: Final answer
    x = 108,540,632.85

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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.