Home / 5,282,279.30-7,921,111.66-1,869,431.63

Finding the Fourth Proportional to 5,282,279.30, 7,921,111.66 and 1,869,431.63

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Solution

The fourth proportional to 5,282,279.30, 7,921,111.66 and 1,869,431.63 is: 2,803,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282,279.30 : 7,921,111.66 = 1,869,431.63 : x
  2. Step 2: Convert to fraction form
    5,282,279.30/7,921,111.66 = 1,869,431.63/x
  3. Step 3: Cross multiply
    5,282,279.30x = 7,921,111.66 × 1,869,431.63
  4. Step 4: Simplify right side
    5,282,279.30x = 14,807,976,637,686.67
  5. Step 5: Solve for x
    x = 14,807,976,637,686.67/5,282,279.30
  6. Step 6: Final answer
    x = 2,803,330.87

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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.