Home / 76,809,701.40-115,214,552.10-70,970,443.80

Finding the Fourth Proportional to 76,809,701.40, 115,214,552.10 and 70,970,443.80

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Solution

The fourth proportional to 76,809,701.40, 115,214,552.10 and 70,970,443.80 is: 106,455,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,809,701.40 : 115,214,552.10 = 70,970,443.80 : x
  2. Step 2: Convert to fraction form
    76,809,701.40/115,214,552.10 = 70,970,443.80/x
  3. Step 3: Cross multiply
    76,809,701.40x = 115,214,552.10 × 70,970,443.80
  4. Step 4: Simplify right side
    76,809,701.40x = 8,176,827,894,755,221
  5. Step 5: Solve for x
    x = 8,176,827,894,755,221/76,809,701.40
  6. Step 6: Final answer
    x = 106,455,665.70

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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.