Home / 10,020,980.40-15,031,470.60-8,586,089.70

Finding the Fourth Proportional to 10,020,980.40, 15,031,470.60 and 8,586,089.70

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Solution

The fourth proportional to 10,020,980.40, 15,031,470.60 and 8,586,089.70 is: 12,879,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,980.40 : 15,031,470.60 = 8,586,089.70 : x
  2. Step 2: Convert to fraction form
    10,020,980.40/15,031,470.60 = 8,586,089.70/x
  3. Step 3: Cross multiply
    10,020,980.40x = 15,031,470.60 × 8,586,089.70
  4. Step 4: Simplify right side
    10,020,980.40x = 129,061,554,894,512.81
  5. Step 5: Solve for x
    x = 129,061,554,894,512.81/10,020,980.40
  6. Step 6: Final answer
    x = 12,879,134.55

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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.