Home / 86,640,192,031.70-129,960,288,047.55-74,655,984,905.30

Finding the Fourth Proportional to 86,640,192,031.70, 129,960,288,047.55 and 74,655,984,905.30

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Solution

The fourth proportional to 86,640,192,031.70, 129,960,288,047.55 and 74,655,984,905.30 is: 111,983,977,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,640,192,031.70 : 129,960,288,047.55 = 74,655,984,905.30 : x
  2. Step 2: Convert to fraction form
    86,640,192,031.70/129,960,288,047.55 = 74,655,984,905.30/x
  3. Step 3: Cross multiply
    86,640,192,031.70x = 129,960,288,047.55 × 74,655,984,905.30
  4. Step 4: Simplify right side
    86,640,192,031.70x = 9,702,313,302,766,332,674,048
  5. Step 5: Solve for x
    x = 9,702,313,302,766,332,674,048/86,640,192,031.70
  6. Step 6: Final answer
    x = 111,983,977,357.95

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1.5x scale

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.