Home / 72,260,574.40-99,719,343.87-39,220,821.82

Finding the Fourth Proportional to 72,260,574.40, 99,719,343.87 and 39,220,821.82

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Solution

The fourth proportional to 72,260,574.40, 99,719,343.87 and 39,220,821.82 is: 54,124,599.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260,574.40 : 99,719,343.87 = 39,220,821.82 : x
  2. Step 2: Convert to fraction form
    72,260,574.40/99,719,343.87 = 39,220,821.82/x
  3. Step 3: Cross multiply
    72,260,574.40x = 99,719,343.87 × 39,220,821.82
  4. Step 4: Simplify right side
    72,260,574.40x = 3,911,074,617,932,579.50
  5. Step 5: Solve for x
    x = 3,911,074,617,932,579.50/72,260,574.40
  6. Step 6: Final answer
    x = 54,124,599.07

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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.