Home / 15,678,020.64-21,634,937.52-8,709,150

Finding the Fourth Proportional to 15,678,020.64, 21,634,937.52 and 8,709,150

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Solution

The fourth proportional to 15,678,020.64, 21,634,937.52 and 8,709,150 is: 12,018,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,020.64 : 21,634,937.52 = 8,709,150 : x
  2. Step 2: Convert to fraction form
    15,678,020.64/21,634,937.52 = 8,709,150/x
  3. Step 3: Cross multiply
    15,678,020.64x = 21,634,937.52 × 8,709,150
  4. Step 4: Simplify right side
    15,678,020.64x = 188,421,916,102,308
  5. Step 5: Solve for x
    x = 188,421,916,102,308/15,678,020.64
  6. Step 6: Final answer
    x = 12,018,220.95

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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.