Home / 53,280,266.40-79,885,407.60-20,912,666.40

Finding the Fourth Proportional to 53,280,266.40, 79,885,407.60 and 20,912,666.40

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Solution

The fourth proportional to 53,280,266.40, 79,885,407.60 and 20,912,666.40 is: 31,355,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280,266.40 : 79,885,407.60 = 20,912,666.40 : x
  2. Step 2: Convert to fraction form
    53,280,266.40/79,885,407.60 = 20,912,666.40/x
  3. Step 3: Cross multiply
    53,280,266.40x = 79,885,407.60 × 20,912,666.40
  4. Step 4: Simplify right side
    53,280,266.40x = 1,670,616,879,366,824.50
  5. Step 5: Solve for x
    x = 1,670,616,879,366,824.50/53,280,266.40
  6. Step 6: Final answer
    x = 31,355,265.13

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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.