Home / 318,813,724.40-439,949,346.16-177,677,434.76

Finding the Fourth Proportional to 318,813,724.40, 439,949,346.16 and 177,677,434.76

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Solution

The fourth proportional to 318,813,724.40, 439,949,346.16 and 177,677,434.76 is: 245,187,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,813,724.40 : 439,949,346.16 = 177,677,434.76 : x
  2. Step 2: Convert to fraction form
    318,813,724.40/439,949,346.16 = 177,677,434.76/x
  3. Step 3: Cross multiply
    318,813,724.40x = 439,949,346.16 × 177,677,434.76
  4. Step 4: Simplify right side
    318,813,724.40x = 78,169,071,250,048,064
  5. Step 5: Solve for x
    x = 78,169,071,250,048,064/318,813,724.40
  6. Step 6: Final answer
    x = 245,187,284.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.