Home / 111,778,390.98-167,657,981.09-68,047,799.13

Finding the Fourth Proportional to 111,778,390.98, 167,657,981.09 and 68,047,799.13

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Solution

The fourth proportional to 111,778,390.98, 167,657,981.09 and 68,047,799.13 is: 102,065,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,778,390.98 : 167,657,981.09 = 68,047,799.13 : x
  2. Step 2: Convert to fraction form
    111,778,390.98/167,657,981.09 = 68,047,799.13/x
  3. Step 3: Cross multiply
    111,778,390.98x = 167,657,981.09 × 68,047,799.13
  4. Step 4: Simplify right side
    111,778,390.98x = 11,408,756,619,413,420
  5. Step 5: Solve for x
    x = 11,408,756,619,413,420/111,778,390.98
  6. Step 6: Final answer
    x = 102,065,851.18

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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.