Home / 20,426,711.61-28,188,013.80-11,134,077.18

Finding the Fourth Proportional to 20,426,711.61, 28,188,013.80 and 11,134,077.18

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Solution

The fourth proportional to 20,426,711.61, 28,188,013.80 and 11,134,077.18 is: 15,364,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426,711.61 : 28,188,013.80 = 11,134,077.18 : x
  2. Step 2: Convert to fraction form
    20,426,711.61/28,188,013.80 = 11,134,077.18/x
  3. Step 3: Cross multiply
    20,426,711.61x = 28,188,013.80 × 11,134,077.18
  4. Step 4: Simplify right side
    20,426,711.61x = 313,847,521,136,152.81
  5. Step 5: Solve for x
    x = 313,847,521,136,152.81/20,426,711.61
  6. Step 6: Final answer
    x = 15,364,564.16

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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.