Home / 129,039,870.80-193,559,806.20-96,791,243.60

Finding the Fourth Proportional to 129,039,870.80, 193,559,806.20 and 96,791,243.60

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Solution

The fourth proportional to 129,039,870.80, 193,559,806.20 and 96,791,243.60 is: 145,186,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,039,870.80 : 193,559,806.20 = 96,791,243.60 : x
  2. Step 2: Convert to fraction form
    129,039,870.80/193,559,806.20 = 96,791,243.60/x
  3. Step 3: Cross multiply
    129,039,870.80x = 193,559,806.20 × 96,791,243.60
  4. Step 4: Simplify right side
    129,039,870.80x = 18,734,894,353,072,988
  5. Step 5: Solve for x
    x = 18,734,894,353,072,988/129,039,870.80
  6. Step 6: Final answer
    x = 145,186,865.40

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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.