Home / 181,918,789.20-272,878,183.80-66,879,527.40

Finding the Fourth Proportional to 181,918,789.20, 272,878,183.80 and 66,879,527.40

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Solution

The fourth proportional to 181,918,789.20, 272,878,183.80 and 66,879,527.40 is: 100,319,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918,789.20 : 272,878,183.80 = 66,879,527.40 : x
  2. Step 2: Convert to fraction form
    181,918,789.20/272,878,183.80 = 66,879,527.40/x
  3. Step 3: Cross multiply
    181,918,789.20x = 272,878,183.80 × 66,879,527.40
  4. Step 4: Simplify right side
    181,918,789.20x = 18,249,963,970,314,336
  5. Step 5: Solve for x
    x = 18,249,963,970,314,336/181,918,789.20
  6. Step 6: Final answer
    x = 100,319,291.10

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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.