Home / 85,697,960.20-128,558,750.10-31,097,318.20

Finding the Fourth Proportional to 85,697,960.20, 128,558,750.10 and 31,097,318.20

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Solution

The fourth proportional to 85,697,960.20, 128,558,750.10 and 31,097,318.20 is: 46,650,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,697,960.20 : 128,558,750.10 = 31,097,318.20 : x
  2. Step 2: Convert to fraction form
    85,697,960.20/128,558,750.10 = 31,097,318.20/x
  3. Step 3: Cross multiply
    85,697,960.20x = 128,558,750.10 × 31,097,318.20
  4. Step 4: Simplify right side
    85,697,960.20x = 3,997,832,359,253,981.50
  5. Step 5: Solve for x
    x = 3,997,832,359,253,981.50/85,697,960.20
  6. Step 6: Final answer
    x = 46,650,262.74

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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.