Home / 66,947,335.20-100,421,002.80-18,425,095.20

Finding the Fourth Proportional to 66,947,335.20, 100,421,002.80 and 18,425,095.20

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Solution

The fourth proportional to 66,947,335.20, 100,421,002.80 and 18,425,095.20 is: 27,637,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,947,335.20 : 100,421,002.80 = 18,425,095.20 : x
  2. Step 2: Convert to fraction form
    66,947,335.20/100,421,002.80 = 18,425,095.20/x
  3. Step 3: Cross multiply
    66,947,335.20x = 100,421,002.80 × 18,425,095.20
  4. Step 4: Simplify right side
    66,947,335.20x = 1,850,266,536,669,466.50
  5. Step 5: Solve for x
    x = 1,850,266,536,669,466.50/66,947,335.20
  6. Step 6: Final answer
    x = 27,637,642.80

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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.