Home / 28,454,808.28-39,267,733.64-15,402,063.76

Finding the Fourth Proportional to 28,454,808.28, 39,267,733.64 and 15,402,063.76

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Solution

The fourth proportional to 28,454,808.28, 39,267,733.64 and 15,402,063.76 is: 21,254,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454,808.28 : 39,267,733.64 = 15,402,063.76 : x
  2. Step 2: Convert to fraction form
    28,454,808.28/39,267,733.64 = 15,402,063.76/x
  3. Step 3: Cross multiply
    28,454,808.28x = 39,267,733.64 × 15,402,063.76
  4. Step 4: Simplify right side
    28,454,808.28x = 604,804,137,233,976.88
  5. Step 5: Solve for x
    x = 604,804,137,233,976.88/28,454,808.28
  6. Step 6: Final answer
    x = 21,254,901.15

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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.