Home / 52,209,640.80-78,314,461.20-31,802,306.40

Finding the Fourth Proportional to 52,209,640.80, 78,314,461.20 and 31,802,306.40

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Solution

The fourth proportional to 52,209,640.80, 78,314,461.20 and 31,802,306.40 is: 47,703,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,209,640.80 : 78,314,461.20 = 31,802,306.40 : x
  2. Step 2: Convert to fraction form
    52,209,640.80/78,314,461.20 = 31,802,306.40/x
  3. Step 3: Cross multiply
    52,209,640.80x = 78,314,461.20 × 31,802,306.40
  4. Step 4: Simplify right side
    52,209,640.80x = 2,490,580,490,633,311.50
  5. Step 5: Solve for x
    x = 2,490,580,490,633,311.50/52,209,640.80
  6. Step 6: Final answer
    x = 47,703,459.60

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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.