Home / 53,280,257.40-79,885,394.10-20,912,657.40

Finding the Fourth Proportional to 53,280,257.40, 79,885,394.10 and 20,912,657.40

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Solution

The fourth proportional to 53,280,257.40, 79,885,394.10 and 20,912,657.40 is: 31,355,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280,257.40 : 79,885,394.10 = 20,912,657.40 : x
  2. Step 2: Convert to fraction form
    53,280,257.40/79,885,394.10 = 20,912,657.40/x
  3. Step 3: Cross multiply
    53,280,257.40x = 79,885,394.10 × 20,912,657.40
  4. Step 4: Simplify right side
    53,280,257.40x = 1,670,615,878,077,281
  5. Step 5: Solve for x
    x = 1,670,615,878,077,281/53,280,257.40
  6. Step 6: Final answer
    x = 31,355,251.64

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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.