Home / 121,453,746.60-167,610,356.10-66,449,605.80

Finding the Fourth Proportional to 121,453,746.60, 167,610,356.10 and 66,449,605.80

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Solution

The fourth proportional to 121,453,746.60, 167,610,356.10 and 66,449,605.80 is: 91,702,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453,746.60 : 167,610,356.10 = 66,449,605.80 : x
  2. Step 2: Convert to fraction form
    121,453,746.60/167,610,356.10 = 66,449,605.80/x
  3. Step 3: Cross multiply
    121,453,746.60x = 167,610,356.10 × 66,449,605.80
  4. Step 4: Simplify right side
    121,453,746.60x = 11,137,642,090,842,624
  5. Step 5: Solve for x
    x = 11,137,642,090,842,624/121,453,746.60
  6. Step 6: Final answer
    x = 91,702,746.13

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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.