Home / 120,528,002.70-180,792,004.05-38,646,722.70

Finding the Fourth Proportional to 120,528,002.70, 180,792,004.05 and 38,646,722.70

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Solution

The fourth proportional to 120,528,002.70, 180,792,004.05 and 38,646,722.70 is: 57,970,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528,002.70 : 180,792,004.05 = 38,646,722.70 : x
  2. Step 2: Convert to fraction form
    120,528,002.70/180,792,004.05 = 38,646,722.70/x
  3. Step 3: Cross multiply
    120,528,002.70x = 180,792,004.05 × 38,646,722.70
  4. Step 4: Simplify right side
    120,528,002.70x = 6,987,018,446,897,628
  5. Step 5: Solve for x
    x = 6,987,018,446,897,628/120,528,002.70
  6. Step 6: Final answer
    x = 57,970,084.05

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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.