Home / 42,945,390.40-64,376,095.20-38,410,427.20

Finding the Fourth Proportional to 42,945,390.40, 64,376,095.20 and 38,410,427.20

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Solution

The fourth proportional to 42,945,390.40, 64,376,095.20 and 38,410,427.20 is: 57,578,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,945,390.40 : 64,376,095.20 = 38,410,427.20 : x
  2. Step 2: Convert to fraction form
    42,945,390.40/64,376,095.20 = 38,410,427.20/x
  3. Step 3: Cross multiply
    42,945,390.40x = 64,376,095.20 × 38,410,427.20
  4. Step 4: Simplify right side
    42,945,390.40x = 2,472,713,318,099,869.50
  5. Step 5: Solve for x
    x = 2,472,713,318,099,869.50/42,945,390.40
  6. Step 6: Final answer
    x = 57,578,084.52

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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.