Home / 125,987,201.20-188,980,801.80-30,249,089.20

Finding the Fourth Proportional to 125,987,201.20, 188,980,801.80 and 30,249,089.20

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Solution

The fourth proportional to 125,987,201.20, 188,980,801.80 and 30,249,089.20 is: 45,373,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,987,201.20 : 188,980,801.80 = 30,249,089.20 : x
  2. Step 2: Convert to fraction form
    125,987,201.20/188,980,801.80 = 30,249,089.20/x
  3. Step 3: Cross multiply
    125,987,201.20x = 188,980,801.80 × 30,249,089.20
  4. Step 4: Simplify right side
    125,987,201.20x = 5,716,497,130,735,721
  5. Step 5: Solve for x
    x = 5,716,497,130,735,721/125,987,201.20
  6. Step 6: Final answer
    x = 45,373,633.80

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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.