Home / 74,676,865.40-112,015,298.10-43,939,892.60

Finding the Fourth Proportional to 74,676,865.40, 112,015,298.10 and 43,939,892.60

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Solution

The fourth proportional to 74,676,865.40, 112,015,298.10 and 43,939,892.60 is: 65,909,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676,865.40 : 112,015,298.10 = 43,939,892.60 : x
  2. Step 2: Convert to fraction form
    74,676,865.40/112,015,298.10 = 43,939,892.60/x
  3. Step 3: Cross multiply
    74,676,865.40x = 112,015,298.10 × 43,939,892.60
  4. Step 4: Simplify right side
    74,676,865.40x = 4,921,940,168,070,984
  5. Step 5: Solve for x
    x = 4,921,940,168,070,984/74,676,865.40
  6. Step 6: Final answer
    x = 65,909,838.90

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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.