Home / 74,732,905.20-112,099,357.80-45,885,500.40

Finding the Fourth Proportional to 74,732,905.20, 112,099,357.80 and 45,885,500.40

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Solution

The fourth proportional to 74,732,905.20, 112,099,357.80 and 45,885,500.40 is: 68,828,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732,905.20 : 112,099,357.80 = 45,885,500.40 : x
  2. Step 2: Convert to fraction form
    74,732,905.20/112,099,357.80 = 45,885,500.40/x
  3. Step 3: Cross multiply
    74,732,905.20x = 112,099,357.80 × 45,885,500.40
  4. Step 4: Simplify right side
    74,732,905.20x = 5,143,735,127,171,643
  5. Step 5: Solve for x
    x = 5,143,735,127,171,643/74,732,905.20
  6. Step 6: Final answer
    x = 68,828,250.60

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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.