Home / 412,386,720.16-618,821,291.76-153,780,599.20

Finding the Fourth Proportional to 412,386,720.16, 618,821,291.76 and 153,780,599.20

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Solution

The fourth proportional to 412,386,720.16, 618,821,291.76 and 153,780,599.20 is: 230,760,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,386,720.16 : 618,821,291.76 = 153,780,599.20 : x
  2. Step 2: Convert to fraction form
    412,386,720.16/618,821,291.76 = 153,780,599.20/x
  3. Step 3: Cross multiply
    412,386,720.16x = 618,821,291.76 × 153,780,599.20
  4. Step 4: Simplify right side
    412,386,720.16x = 95,162,709,044,570,816
  5. Step 5: Solve for x
    x = 95,162,709,044,570,816/412,386,720.16
  6. Step 6: Final answer
    x = 230,760,847.51

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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.