Home / 121,518,782.16-167,696,965-69,310,461.20

Finding the Fourth Proportional to 121,518,782.16, 167,696,965 and 69,310,461.20

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Solution

The fourth proportional to 121,518,782.16, 167,696,965 and 69,310,461.20 is: 95,649,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,518,782.16 : 167,696,965 = 69,310,461.20 : x
  2. Step 2: Convert to fraction form
    121,518,782.16/167,696,965 = 69,310,461.20/x
  3. Step 3: Cross multiply
    121,518,782.16x = 167,696,965 × 69,310,461.20
  4. Step 4: Simplify right side
    121,518,782.16x = 11,623,153,985,990,258
  5. Step 5: Solve for x
    x = 11,623,153,985,990,258/121,518,782.16
  6. Step 6: Final answer
    x = 95,649,032.84

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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.