Home / 153,162,129.02-211,294,238.24-90,395,644.55

Finding the Fourth Proportional to 153,162,129.02, 211,294,238.24 and 90,395,644.55

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Solution

The fourth proportional to 153,162,129.02, 211,294,238.24 and 90,395,644.55 is: 124,704,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,162,129.02 : 211,294,238.24 = 90,395,644.55 : x
  2. Step 2: Convert to fraction form
    153,162,129.02/211,294,238.24 = 90,395,644.55/x
  3. Step 3: Cross multiply
    153,162,129.02x = 211,294,238.24 × 90,395,644.55
  4. Step 4: Simplify right side
    153,162,129.02x = 19,100,078,854,575,576
  5. Step 5: Solve for x
    x = 19,100,078,854,575,576/153,162,129.02
  6. Step 6: Final answer
    x = 124,704,970.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.