Home / 65,920,319.48-90,961,679.52-36,143,131.40

Finding the Fourth Proportional to 65,920,319.48, 90,961,679.52 and 36,143,131.40

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Solution

The fourth proportional to 65,920,319.48, 90,961,679.52 and 36,143,131.40 is: 49,872,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920,319.48 : 90,961,679.52 = 36,143,131.40 : x
  2. Step 2: Convert to fraction form
    65,920,319.48/90,961,679.52 = 36,143,131.40/x
  3. Step 3: Cross multiply
    65,920,319.48x = 90,961,679.52 × 36,143,131.40
  4. Step 4: Simplify right side
    65,920,319.48x = 3,287,639,935,256,048.50
  5. Step 5: Solve for x
    x = 3,287,639,935,256,048.50/65,920,319.48
  6. Step 6: Final answer
    x = 49,872,936.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.