Home / 70,460,128.71-105,705,396.33-21,271,901.04

Finding the Fourth Proportional to 70,460,128.71, 105,705,396.33 and 21,271,901.04

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Solution

The fourth proportional to 70,460,128.71, 105,705,396.33 and 21,271,901.04 is: 31,912,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460,128.71 : 105,705,396.33 = 21,271,901.04 : x
  2. Step 2: Convert to fraction form
    70,460,128.71/105,705,396.33 = 21,271,901.04/x
  3. Step 3: Cross multiply
    70,460,128.71x = 105,705,396.33 × 21,271,901.04
  4. Step 4: Simplify right side
    70,460,128.71x = 2,248,554,730,125,739
  5. Step 5: Solve for x
    x = 2,248,554,730,125,739/70,460,128.71
  6. Step 6: Final answer
    x = 31,912,441.42

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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.