Home / 39,367,634.40-54,330,416.81-21,730,039.16

Finding the Fourth Proportional to 39,367,634.40, 54,330,416.81 and 21,730,039.16

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Solution

The fourth proportional to 39,367,634.40, 54,330,416.81 and 21,730,039.16 is: 29,989,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,367,634.40 : 54,330,416.81 = 21,730,039.16 : x
  2. Step 2: Convert to fraction form
    39,367,634.40/54,330,416.81 = 21,730,039.16/x
  3. Step 3: Cross multiply
    39,367,634.40x = 54,330,416.81 × 21,730,039.16
  4. Step 4: Simplify right side
    39,367,634.40x = 1,180,602,084,860,422.25
  5. Step 5: Solve for x
    x = 1,180,602,084,860,422.25/39,367,634.40
  6. Step 6: Final answer
    x = 29,989,154.87

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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.