Home / 28,257,513.41-42,329,517.91-12,883,655.20

Finding the Fourth Proportional to 28,257,513.41, 42,329,517.91 and 12,883,655.20

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Solution

The fourth proportional to 28,257,513.41, 42,329,517.91 and 12,883,655.20 is: 19,299,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257,513.41 : 42,329,517.91 = 12,883,655.20 : x
  2. Step 2: Convert to fraction form
    28,257,513.41/42,329,517.91 = 12,883,655.20/x
  3. Step 3: Cross multiply
    28,257,513.41x = 42,329,517.91 × 12,883,655.20
  4. Step 4: Simplify right side
    28,257,513.41x = 545,358,913,534,664.56
  5. Step 5: Solve for x
    x = 545,358,913,534,664.56/28,257,513.41
  6. Step 6: Final answer
    x = 19,299,607.35

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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.