Home / 90,987,494.40-136,488,291.84-30,403,434.24

Finding the Fourth Proportional to 90,987,494.40, 136,488,291.84 and 30,403,434.24

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Solution

The fourth proportional to 90,987,494.40, 136,488,291.84 and 30,403,434.24 is: 45,607,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987,494.40 : 136,488,291.84 = 30,403,434.24 : x
  2. Step 2: Convert to fraction form
    90,987,494.40/136,488,291.84 = 30,403,434.24/x
  3. Step 3: Cross multiply
    90,987,494.40x = 136,488,291.84 × 30,403,434.24
  4. Step 4: Simplify right side
    90,987,494.40x = 4,149,712,805,487,368.50
  5. Step 5: Solve for x
    x = 4,149,712,805,487,368.50/90,987,494.40
  6. Step 6: Final answer
    x = 45,607,507.19

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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.