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Finding the Fourth Proportional to 18,750,652.50, 28,266,518.65 and 17,500,728.14

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Solution

The fourth proportional to 18,750,652.50, 28,266,518.65 and 17,500,728.14 is: 26,382,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750,652.50 : 28,266,518.65 = 17,500,728.14 : x
  2. Step 2: Convert to fraction form
    18,750,652.50/28,266,518.65 = 17,500,728.14/x
  3. Step 3: Cross multiply
    18,750,652.50x = 28,266,518.65 × 17,500,728.14
  4. Step 4: Simplify right side
    18,750,652.50x = 494,684,658,129,053.62
  5. Step 5: Solve for x
    x = 494,684,658,129,053.62/18,750,652.50
  6. Step 6: Final answer
    x = 26,382,263.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.