Home / 15,563,123.78-21,473,328.57-9,123,351.62

Finding the Fourth Proportional to 15,563,123.78, 21,473,328.57 and 9,123,351.62

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Solution

The fourth proportional to 15,563,123.78, 21,473,328.57 and 9,123,351.62 is: 12,588,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,563,123.78 : 21,473,328.57 = 9,123,351.62 : x
  2. Step 2: Convert to fraction form
    15,563,123.78/21,473,328.57 = 9,123,351.62/x
  3. Step 3: Cross multiply
    15,563,123.78x = 21,473,328.57 × 9,123,351.62
  4. Step 4: Simplify right side
    15,563,123.78x = 195,908,726,995,901.78
  5. Step 5: Solve for x
    x = 195,908,726,995,901.78/15,563,123.78
  6. Step 6: Final answer
    x = 12,588,008.02

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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.