Home / 159,787,075.41-220,506,211.44-90,187,200.09

Finding the Fourth Proportional to 159,787,075.41, 220,506,211.44 and 90,187,200.09

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Solution

The fourth proportional to 159,787,075.41, 220,506,211.44 and 90,187,200.09 is: 124,458,362.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,787,075.41 : 220,506,211.44 = 90,187,200.09 : x
  2. Step 2: Convert to fraction form
    159,787,075.41/220,506,211.44 = 90,187,200.09/x
  3. Step 3: Cross multiply
    159,787,075.41x = 220,506,211.44 × 90,187,200.09
  4. Step 4: Simplify right side
    159,787,075.41x = 19,886,837,812,227,128
  5. Step 5: Solve for x
    x = 19,886,837,812,227,128/159,787,075.41
  6. Step 6: Final answer
    x = 124,458,362.86

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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.