Home / 80,109,088.30-120,163,632.45-53,182,744.30

Finding the Fourth Proportional to 80,109,088.30, 120,163,632.45 and 53,182,744.30

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Solution

The fourth proportional to 80,109,088.30, 120,163,632.45 and 53,182,744.30 is: 79,774,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,088.30 : 120,163,632.45 = 53,182,744.30 : x
  2. Step 2: Convert to fraction form
    80,109,088.30/120,163,632.45 = 53,182,744.30/x
  3. Step 3: Cross multiply
    80,109,088.30x = 120,163,632.45 × 53,182,744.30
  4. Step 4: Simplify right side
    80,109,088.30x = 6,390,631,738,747,532
  5. Step 5: Solve for x
    x = 6,390,631,738,747,532/80,109,088.30
  6. Step 6: Final answer
    x = 79,774,116.45

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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.