Home / 90,871,996.65-136,307,994.98-54,592,291.05

Finding the Fourth Proportional to 90,871,996.65, 136,307,994.98 and 54,592,291.05

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Solution

The fourth proportional to 90,871,996.65, 136,307,994.98 and 54,592,291.05 is: 81,888,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,871,996.65 : 136,307,994.98 = 54,592,291.05 : x
  2. Step 2: Convert to fraction form
    90,871,996.65/136,307,994.98 = 54,592,291.05/x
  3. Step 3: Cross multiply
    90,871,996.65x = 136,307,994.98 × 54,592,291.05
  4. Step 4: Simplify right side
    90,871,996.65x = 7,441,365,734,117,137
  5. Step 5: Solve for x
    x = 7,441,365,734,117,137/90,871,996.65
  6. Step 6: Final answer
    x = 81,888,436.58

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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.