Home / 137,656,751.50-189,604,443.90-105,806,012.50

Finding the Fourth Proportional to 137,656,751.50, 189,604,443.90 and 105,806,012.50

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Solution

The fourth proportional to 137,656,751.50, 189,604,443.90 and 105,806,012.50 is: 145,734,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,656,751.50 : 189,604,443.90 = 105,806,012.50 : x
  2. Step 2: Convert to fraction form
    137,656,751.50/189,604,443.90 = 105,806,012.50/x
  3. Step 3: Cross multiply
    137,656,751.50x = 189,604,443.90 × 105,806,012.50
  4. Step 4: Simplify right side
    137,656,751.50x = 20,061,290,161,338,948
  5. Step 5: Solve for x
    x = 20,061,290,161,338,948/137,656,751.50
  6. Step 6: Final answer
    x = 145,734,153.56

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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.