Home / 99,043,821.87-136,684,743.01-54,990,822.88

Finding the Fourth Proportional to 99,043,821.87, 136,684,743.01 and 54,990,822.88

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Solution

The fourth proportional to 99,043,821.87, 136,684,743.01 and 54,990,822.88 is: 75,889,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,043,821.87 : 136,684,743.01 = 54,990,822.88 : x
  2. Step 2: Convert to fraction form
    99,043,821.87/136,684,743.01 = 54,990,822.88/x
  3. Step 3: Cross multiply
    99,043,821.87x = 136,684,743.01 × 54,990,822.88
  4. Step 4: Simplify right side
    99,043,821.87x = 7,516,406,492,883,331
  5. Step 5: Solve for x
    x = 7,516,406,492,883,331/99,043,821.87
  6. Step 6: Final answer
    x = 75,889,705.69

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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.