Home / 20,137,374.80-30,210,436.20-7,357,859

Finding the Fourth Proportional to 20,137,374.80, 30,210,436.20 and 7,357,859

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Solution

The fourth proportional to 20,137,374.80, 30,210,436.20 and 7,357,859 is: 11,038,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137,374.80 : 30,210,436.20 = 7,357,859 : x
  2. Step 2: Convert to fraction form
    20,137,374.80/30,210,436.20 = 7,357,859/x
  3. Step 3: Cross multiply
    20,137,374.80x = 30,210,436.20 × 7,357,859
  4. Step 4: Simplify right side
    20,137,374.80x = 222,284,129,888,095.78
  5. Step 5: Solve for x
    x = 222,284,129,888,095.78/20,137,374.80
  6. Step 6: Final answer
    x = 11,038,386.69

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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.