Home / 286,264,642.22-429,396,897.72-81,792,719.90

Finding the Fourth Proportional to 286,264,642.22, 429,396,897.72 and 81,792,719.90

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Solution

The fourth proportional to 286,264,642.22, 429,396,897.72 and 81,792,719.90 is: 122,689,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,264,642.22 : 429,396,897.72 = 81,792,719.90 : x
  2. Step 2: Convert to fraction form
    286,264,642.22/429,396,897.72 = 81,792,719.90/x
  3. Step 3: Cross multiply
    286,264,642.22x = 429,396,897.72 × 81,792,719.90
  4. Step 4: Simplify right side
    286,264,642.22x = 35,121,540,181,140,912
  5. Step 5: Solve for x
    x = 35,121,540,181,140,912/286,264,642.22
  6. Step 6: Final answer
    x = 122,689,061.10

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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.