Home / 15,686,034.90-21,648,754.20-8,810,516.76

Finding the Fourth Proportional to 15,686,034.90, 21,648,754.20 and 8,810,516.76

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Solution

The fourth proportional to 15,686,034.90, 21,648,754.20 and 8,810,516.76 is: 12,159,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,034.90 : 21,648,754.20 = 8,810,516.76 : x
  2. Step 2: Convert to fraction form
    15,686,034.90/21,648,754.20 = 8,810,516.76/x
  3. Step 3: Cross multiply
    15,686,034.90x = 21,648,754.20 × 8,810,516.76
  4. Step 4: Simplify right side
    15,686,034.90x = 190,736,711,712,220.38
  5. Step 5: Solve for x
    x = 190,736,711,712,220.38/15,686,034.90
  6. Step 6: Final answer
    x = 12,159,651.11

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1.5x scale

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.