Home / 21,920,661.20-32,880,991.80-21,038,862.80

Finding the Fourth Proportional to 21,920,661.20, 32,880,991.80 and 21,038,862.80

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Solution

The fourth proportional to 21,920,661.20, 32,880,991.80 and 21,038,862.80 is: 31,558,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,661.20 : 32,880,991.80 = 21,038,862.80 : x
  2. Step 2: Convert to fraction form
    21,920,661.20/32,880,991.80 = 21,038,862.80/x
  3. Step 3: Cross multiply
    21,920,661.20x = 32,880,991.80 × 21,038,862.80
  4. Step 4: Simplify right side
    21,920,661.20x = 691,778,675,208,125.12
  5. Step 5: Solve for x
    x = 691,778,675,208,125.12/21,920,661.20
  6. Step 6: Final answer
    x = 31,558,294.20

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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.