Home / 73,990,643.40-110,985,965.10-19,403,123.40

Finding the Fourth Proportional to 73,990,643.40, 110,985,965.10 and 19,403,123.40

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Solution

The fourth proportional to 73,990,643.40, 110,985,965.10 and 19,403,123.40 is: 29,104,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,990,643.40 : 110,985,965.10 = 19,403,123.40 : x
  2. Step 2: Convert to fraction form
    73,990,643.40/110,985,965.10 = 19,403,123.40/x
  3. Step 3: Cross multiply
    73,990,643.40x = 110,985,965.10 × 19,403,123.40
  4. Step 4: Simplify right side
    73,990,643.40x = 2,153,474,376,503,393
  5. Step 5: Solve for x
    x = 2,153,474,376,503,393/73,990,643.40
  6. Step 6: Final answer
    x = 29,104,685.10

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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.