Home / 140,617,307.20-210,757,999.20-72,424,897.60

Finding the Fourth Proportional to 140,617,307.20, 210,757,999.20 and 72,424,897.60

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Solution

The fourth proportional to 140,617,307.20, 210,757,999.20 and 72,424,897.60 is: 108,550,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,617,307.20 : 210,757,999.20 = 72,424,897.60 : x
  2. Step 2: Convert to fraction form
    140,617,307.20/210,757,999.20 = 72,424,897.60/x
  3. Step 3: Cross multiply
    140,617,307.20x = 210,757,999.20 × 72,424,897.60
  4. Step 4: Simplify right side
    140,617,307.20x = 15,264,126,510,440,880
  5. Step 5: Solve for x
    x = 15,264,126,510,440,880/140,617,307.20
  6. Step 6: Final answer
    x = 108,550,837.83

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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.