Home / 20,776,503.60-31,164,755.40-19,784,480.40

Finding the Fourth Proportional to 20,776,503.60, 31,164,755.40 and 19,784,480.40

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Solution

The fourth proportional to 20,776,503.60, 31,164,755.40 and 19,784,480.40 is: 29,676,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,503.60 : 31,164,755.40 = 19,784,480.40 : x
  2. Step 2: Convert to fraction form
    20,776,503.60/31,164,755.40 = 19,784,480.40/x
  3. Step 3: Cross multiply
    20,776,503.60x = 31,164,755.40 × 19,784,480.40
  4. Step 4: Simplify right side
    20,776,503.60x = 616,578,492,382,094.12
  5. Step 5: Solve for x
    x = 616,578,492,382,094.12/20,776,503.60
  6. Step 6: Final answer
    x = 29,676,720.60

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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.