Home / 68,544,005.60-102,816,008.40-30,185,775.20

Finding the Fourth Proportional to 68,544,005.60, 102,816,008.40 and 30,185,775.20

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Solution

The fourth proportional to 68,544,005.60, 102,816,008.40 and 30,185,775.20 is: 45,278,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,544,005.60 : 102,816,008.40 = 30,185,775.20 : x
  2. Step 2: Convert to fraction form
    68,544,005.60/102,816,008.40 = 30,185,775.20/x
  3. Step 3: Cross multiply
    68,544,005.60x = 102,816,008.40 × 30,185,775.20
  4. Step 4: Simplify right side
    68,544,005.60x = 3,103,580,916,523,712
  5. Step 5: Solve for x
    x = 3,103,580,916,523,712/68,544,005.60
  6. Step 6: Final answer
    x = 45,278,662.80

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1.5x scale

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.