Home / 120,272,048.24-165,975,532.92-65,267,904.74

Finding the Fourth Proportional to 120,272,048.24, 165,975,532.92 and 65,267,904.74

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Solution

The fourth proportional to 120,272,048.24, 165,975,532.92 and 65,267,904.74 is: 90,069,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,272,048.24 : 165,975,532.92 = 65,267,904.74 : x
  2. Step 2: Convert to fraction form
    120,272,048.24/165,975,532.92 = 65,267,904.74/x
  3. Step 3: Cross multiply
    120,272,048.24x = 165,975,532.92 × 65,267,904.74
  4. Step 4: Simplify right side
    120,272,048.24x = 10,832,875,270,963,416
  5. Step 5: Solve for x
    x = 10,832,875,270,963,416/120,272,048.24
  6. Step 6: Final answer
    x = 90,069,766.25

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1.5x scale

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.