Home / 74,714,905.20-112,072,357.80-71,845,123.80

Finding the Fourth Proportional to 74,714,905.20, 112,072,357.80 and 71,845,123.80

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Solution

The fourth proportional to 74,714,905.20, 112,072,357.80 and 71,845,123.80 is: 107,767,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,714,905.20 : 112,072,357.80 = 71,845,123.80 : x
  2. Step 2: Convert to fraction form
    74,714,905.20/112,072,357.80 = 71,845,123.80/x
  3. Step 3: Cross multiply
    74,714,905.20x = 112,072,357.80 × 71,845,123.80
  4. Step 4: Simplify right side
    74,714,905.20x = 8,051,852,420,698,895
  5. Step 5: Solve for x
    x = 8,051,852,420,698,895/74,714,905.20
  6. Step 6: Final answer
    x = 107,767,685.70

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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.