Home / 28,186,622.32-38,896,891.05-16,425,141.70

Finding the Fourth Proportional to 28,186,622.32, 38,896,891.05 and 16,425,141.70

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Solution

The fourth proportional to 28,186,622.32, 38,896,891.05 and 16,425,141.70 is: 22,666,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186,622.32 : 38,896,891.05 = 16,425,141.70 : x
  2. Step 2: Convert to fraction form
    28,186,622.32/38,896,891.05 = 16,425,141.70/x
  3. Step 3: Cross multiply
    28,186,622.32x = 38,896,891.05 × 16,425,141.70
  4. Step 4: Simplify right side
    28,186,622.32x = 638,886,947,185,711.75
  5. Step 5: Solve for x
    x = 638,886,947,185,711.75/28,186,622.32
  6. Step 6: Final answer
    x = 22,666,318.08

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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.