Home / 15,780,673.90-23,671,010.85-12,943,989.10

Finding the Fourth Proportional to 15,780,673.90, 23,671,010.85 and 12,943,989.10

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Solution

The fourth proportional to 15,780,673.90, 23,671,010.85 and 12,943,989.10 is: 19,415,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780,673.90 : 23,671,010.85 = 12,943,989.10 : x
  2. Step 2: Convert to fraction form
    15,780,673.90/23,671,010.85 = 12,943,989.10/x
  3. Step 3: Cross multiply
    15,780,673.90x = 23,671,010.85 × 12,943,989.10
  4. Step 4: Simplify right side
    15,780,673.90x = 306,397,306,428,381.75
  5. Step 5: Solve for x
    x = 306,397,306,428,381.75/15,780,673.90
  6. Step 6: Final answer
    x = 19,415,983.65

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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.