Home / 28,340,560.41-39,108,715.14-15,782,262.76

Finding the Fourth Proportional to 28,340,560.41, 39,108,715.14 and 15,782,262.76

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Solution

The fourth proportional to 28,340,560.41, 39,108,715.14 and 15,782,262.76 is: 21,778,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340,560.41 : 39,108,715.14 = 15,782,262.76 : x
  2. Step 2: Convert to fraction form
    28,340,560.41/39,108,715.14 = 15,782,262.76/x
  3. Step 3: Cross multiply
    28,340,560.41x = 39,108,715.14 × 15,782,262.76
  4. Step 4: Simplify right side
    28,340,560.41x = 617,224,018,545,470.12
  5. Step 5: Solve for x
    x = 617,224,018,545,470.12/28,340,560.41
  6. Step 6: Final answer
    x = 21,778,821.93

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1.5x scale

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.