Home / 53,280,290.40-79,885,443.60-20,912,690.40

Finding the Fourth Proportional to 53,280,290.40, 79,885,443.60 and 20,912,690.40

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Solution

The fourth proportional to 53,280,290.40, 79,885,443.60 and 20,912,690.40 is: 31,355,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280,290.40 : 79,885,443.60 = 20,912,690.40 : x
  2. Step 2: Convert to fraction form
    53,280,290.40/79,885,443.60 = 20,912,690.40/x
  3. Step 3: Cross multiply
    53,280,290.40x = 79,885,443.60 × 20,912,690.40
  4. Step 4: Simplify right side
    53,280,290.40x = 1,670,619,549,473,461.25
  5. Step 5: Solve for x
    x = 1,670,619,549,473,461.25/53,280,290.40
  6. Step 6: Final answer
    x = 31,355,301.12

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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.