Home / 42,780,302.64-64,165,904.88-12,074,122.80

Finding the Fourth Proportional to 42,780,302.64, 64,165,904.88 and 12,074,122.80

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Solution

The fourth proportional to 42,780,302.64, 64,165,904.88 and 12,074,122.80 is: 18,109,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,780,302.64 : 64,165,904.88 = 12,074,122.80 : x
  2. Step 2: Convert to fraction form
    42,780,302.64/64,165,904.88 = 12,074,122.80/x
  3. Step 3: Cross multiply
    42,780,302.64x = 64,165,904.88 × 12,074,122.80
  4. Step 4: Simplify right side
    42,780,302.64x = 774,747,015,094,239.38
  5. Step 5: Solve for x
    x = 774,747,015,094,239.38/42,780,302.64
  6. Step 6: Final answer
    x = 18,109,900.29

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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.