Home / 66,168,987.90-91,312,698.36-36,398,994.92

Finding the Fourth Proportional to 66,168,987.90, 91,312,698.36 and 36,398,994.92

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Solution

The fourth proportional to 66,168,987.90, 91,312,698.36 and 36,398,994.92 is: 50,230,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168,987.90 : 91,312,698.36 = 36,398,994.92 : x
  2. Step 2: Convert to fraction form
    66,168,987.90/91,312,698.36 = 36,398,994.92/x
  3. Step 3: Cross multiply
    66,168,987.90x = 91,312,698.36 × 36,398,994.92
  4. Step 4: Simplify right side
    66,168,987.90x = 3,323,690,444,273,121
  5. Step 5: Solve for x
    x = 3,323,690,444,273,121/66,168,987.90
  6. Step 6: Final answer
    x = 50,230,335.23

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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.