Home / 163,642,939.20-245,437,620.48-66,594,726.72

Finding the Fourth Proportional to 163,642,939.20, 245,437,620.48 and 66,594,726.72

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Solution

The fourth proportional to 163,642,939.20, 245,437,620.48 and 66,594,726.72 is: 99,881,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,642,939.20 : 245,437,620.48 = 66,594,726.72 : x
  2. Step 2: Convert to fraction form
    163,642,939.20/245,437,620.48 = 66,594,726.72/x
  3. Step 3: Cross multiply
    163,642,939.20x = 245,437,620.48 × 66,594,726.72
  4. Step 4: Simplify right side
    163,642,939.20x = 16,344,851,262,672,674
  5. Step 5: Solve for x
    x = 16,344,851,262,672,674/163,642,939.20
  6. Step 6: Final answer
    x = 99,881,188.54

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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.