Home / 28,753,197.64-39,679,604.90-15,700,547.68

Finding the Fourth Proportional to 28,753,197.64, 39,679,604.90 and 15,700,547.68

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Solution

The fourth proportional to 28,753,197.64, 39,679,604.90 and 15,700,547.68 is: 21,666,860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753,197.64 : 39,679,604.90 = 15,700,547.68 : x
  2. Step 2: Convert to fraction form
    28,753,197.64/39,679,604.90 = 15,700,547.68/x
  3. Step 3: Cross multiply
    28,753,197.64x = 39,679,604.90 × 15,700,547.68
  4. Step 4: Simplify right side
    28,753,197.64x = 622,991,528,656,011.62
  5. Step 5: Solve for x
    x = 622,991,528,656,011.62/28,753,197.64
  6. Step 6: Final answer
    x = 21,666,860.72

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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.