Home / 42,554,594.40-63,789,901.20-20,971,528.80

Finding the Fourth Proportional to 42,554,594.40, 63,789,901.20 and 20,971,528.80

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Solution

The fourth proportional to 42,554,594.40, 63,789,901.20 and 20,971,528.80 is: 31,436,599.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,554,594.40 : 63,789,901.20 = 20,971,528.80 : x
  2. Step 2: Convert to fraction form
    42,554,594.40/63,789,901.20 = 20,971,528.80/x
  3. Step 3: Cross multiply
    42,554,594.40x = 63,789,901.20 × 20,971,528.80
  4. Step 4: Simplify right side
    42,554,594.40x = 1,337,771,750,164,954.75
  5. Step 5: Solve for x
    x = 1,337,771,750,164,954.75/42,554,594.40
  6. Step 6: Final answer
    x = 31,436,599.71

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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.