Home / 679,500,007.20-1,019,250,010.80-372,673,562.40

Finding the Fourth Proportional to 679,500,007.20, 1,019,250,010.80 and 372,673,562.40

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Solution

The fourth proportional to 679,500,007.20, 1,019,250,010.80 and 372,673,562.40 is: 559,010,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,500,007.20 : 1,019,250,010.80 = 372,673,562.40 : x
  2. Step 2: Convert to fraction form
    679,500,007.20/1,019,250,010.80 = 372,673,562.40/x
  3. Step 3: Cross multiply
    679,500,007.20x = 1,019,250,010.80 × 372,673,562.40
  4. Step 4: Simplify right side
    679,500,007.20x = 379,847,532,501,074,432
  5. Step 5: Solve for x
    x = 379,847,532,501,074,432/679,500,007.20
  6. Step 6: Final answer
    x = 559,010,343.60

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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.