Home / 20,292,718.50-28,003,988.90-11,000,259.82

Finding the Fourth Proportional to 20,292,718.50, 28,003,988.90 and 11,000,259.82

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Solution

The fourth proportional to 20,292,718.50, 28,003,988.90 and 11,000,259.82 is: 15,180,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292,718.50 : 28,003,988.90 = 11,000,259.82 : x
  2. Step 2: Convert to fraction form
    20,292,718.50/28,003,988.90 = 11,000,259.82/x
  3. Step 3: Cross multiply
    20,292,718.50x = 28,003,988.90 × 11,000,259.82
  4. Step 4: Simplify right side
    20,292,718.50x = 308,051,153,896,396
  5. Step 5: Solve for x
    x = 308,051,153,896,396/20,292,718.50
  6. Step 6: Final answer
    x = 15,180,378.81

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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.