Home / 154,312,492.50-212,943,526.83-91,591,315.38

Finding the Fourth Proportional to 154,312,492.50, 212,943,526.83 and 91,591,315.38

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Solution

The fourth proportional to 154,312,492.50, 212,943,526.83 and 91,591,315.38 is: 126,391,437.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,312,492.50 : 212,943,526.83 = 91,591,315.38 : x
  2. Step 2: Convert to fraction form
    154,312,492.50/212,943,526.83 = 91,591,315.38/x
  3. Step 3: Cross multiply
    154,312,492.50x = 212,943,526.83 × 91,591,315.38
  4. Step 4: Simplify right side
    154,312,492.50x = 19,503,777,724,016,020
  5. Step 5: Solve for x
    x = 19,503,777,724,016,020/154,312,492.50
  6. Step 6: Final answer
    x = 126,391,437.32

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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.