Home / 70,300,143.04-105,375,811.36-31,988,561.20

Finding the Fourth Proportional to 70,300,143.04, 105,375,811.36 and 31,988,561.20

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Solution

The fourth proportional to 70,300,143.04, 105,375,811.36 and 31,988,561.20 is: 47,948,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,300,143.04 : 105,375,811.36 = 31,988,561.20 : x
  2. Step 2: Convert to fraction form
    70,300,143.04/105,375,811.36 = 31,988,561.20/x
  3. Step 3: Cross multiply
    70,300,143.04x = 105,375,811.36 × 31,988,561.20
  4. Step 4: Simplify right side
    70,300,143.04x = 3,370,820,590,689,015
  5. Step 5: Solve for x
    x = 3,370,820,590,689,015/70,300,143.04
  6. Step 6: Final answer
    x = 47,948,986.23

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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.