Home / 70,582,427.10-105,873,640.65-18,766,929.60

Finding the Fourth Proportional to 70,582,427.10, 105,873,640.65 and 18,766,929.60

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Solution

The fourth proportional to 70,582,427.10, 105,873,640.65 and 18,766,929.60 is: 28,150,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,582,427.10 : 105,873,640.65 = 18,766,929.60 : x
  2. Step 2: Convert to fraction form
    70,582,427.10/105,873,640.65 = 18,766,929.60/x
  3. Step 3: Cross multiply
    70,582,427.10x = 105,873,640.65 × 18,766,929.60
  4. Step 4: Simplify right side
    70,582,427.10x = 1,986,923,160,574,248.50
  5. Step 5: Solve for x
    x = 1,986,923,160,574,248.50/70,582,427.10
  6. Step 6: Final answer
    x = 28,150,394.40

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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.