Home / 55,281,621.49-76,289,046.75-30,502,728.10

Finding the Fourth Proportional to 55,281,621.49, 76,289,046.75 and 30,502,728.10

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Solution

The fourth proportional to 55,281,621.49, 76,289,046.75 and 30,502,728.10 is: 42,093,990.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281,621.49 : 76,289,046.75 = 30,502,728.10 : x
  2. Step 2: Convert to fraction form
    55,281,621.49/76,289,046.75 = 30,502,728.10/x
  3. Step 3: Cross multiply
    55,281,621.49x = 76,289,046.75 × 30,502,728.10
  4. Step 4: Simplify right side
    55,281,621.49x = 2,327,024,050,023,439
  5. Step 5: Solve for x
    x = 2,327,024,050,023,439/55,281,621.49
  6. Step 6: Final answer
    x = 42,093,990.50

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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.