Home / 40,421,719.40-60,670,632.90-21,266,223.80

Finding the Fourth Proportional to 40,421,719.40, 60,670,632.90 and 21,266,223.80

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Solution

The fourth proportional to 40,421,719.40, 60,670,632.90 and 21,266,223.80 is: 31,919,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421,719.40 : 60,670,632.90 = 21,266,223.80 : x
  2. Step 2: Convert to fraction form
    40,421,719.40/60,670,632.90 = 21,266,223.80/x
  3. Step 3: Cross multiply
    40,421,719.40x = 60,670,632.90 × 21,266,223.80
  4. Step 4: Simplify right side
    40,421,719.40x = 1,290,235,257,339,043
  5. Step 5: Solve for x
    x = 1,290,235,257,339,043/40,421,719.40
  6. Step 6: Final answer
    x = 31,919,356.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.