Home / 40,421,738.40-60,670,661.40-21,266,242.80

Finding the Fourth Proportional to 40,421,738.40, 60,670,661.40 and 21,266,242.80

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Solution

The fourth proportional to 40,421,738.40, 60,670,661.40 and 21,266,242.80 is: 31,919,384.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421,738.40 : 60,670,661.40 = 21,266,242.80 : x
  2. Step 2: Convert to fraction form
    40,421,738.40/60,670,661.40 = 21,266,242.80/x
  3. Step 3: Cross multiply
    40,421,738.40x = 60,670,661.40 × 21,266,242.80
  4. Step 4: Simplify right side
    40,421,738.40x = 1,290,237,016,168,988
  5. Step 5: Solve for x
    x = 1,290,237,016,168,988/40,421,738.40
  6. Step 6: Final answer
    x = 31,919,384.65

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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.