Home / 297,216,077.80-445,824,116.70-78,865,997.80

Finding the Fourth Proportional to 297,216,077.80, 445,824,116.70 and 78,865,997.80

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Solution

The fourth proportional to 297,216,077.80, 445,824,116.70 and 78,865,997.80 is: 118,298,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,216,077.80 : 445,824,116.70 = 78,865,997.80 : x
  2. Step 2: Convert to fraction form
    297,216,077.80/445,824,116.70 = 78,865,997.80/x
  3. Step 3: Cross multiply
    297,216,077.80x = 445,824,116.70 × 78,865,997.80
  4. Step 4: Simplify right side
    297,216,077.80x = 35,160,363,806,849,140
  5. Step 5: Solve for x
    x = 35,160,363,806,849,140/297,216,077.80
  6. Step 6: Final answer
    x = 118,298,996.70

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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.