Home / 120,528,003.70-180,792,005.55-38,646,723.70

Finding the Fourth Proportional to 120,528,003.70, 180,792,005.55 and 38,646,723.70

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Solution

The fourth proportional to 120,528,003.70, 180,792,005.55 and 38,646,723.70 is: 57,970,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528,003.70 : 180,792,005.55 = 38,646,723.70 : x
  2. Step 2: Convert to fraction form
    120,528,003.70/180,792,005.55 = 38,646,723.70/x
  3. Step 3: Cross multiply
    120,528,003.70x = 180,792,005.55 × 38,646,723.70
  4. Step 4: Simplify right side
    120,528,003.70x = 6,987,018,685,659,718
  5. Step 5: Solve for x
    x = 6,987,018,685,659,718/120,528,003.70
  6. Step 6: Final answer
    x = 57,970,085.55

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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.