Home / 20,686,552.40-31,047,543.30-9,189,712.10

Finding the Fourth Proportional to 20,686,552.40, 31,047,543.30 and 9,189,712.10

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Solution

The fourth proportional to 20,686,552.40, 31,047,543.30 and 9,189,712.10 is: 13,792,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686,552.40 : 31,047,543.30 = 9,189,712.10 : x
  2. Step 2: Convert to fraction form
    20,686,552.40/31,047,543.30 = 9,189,712.10/x
  3. Step 3: Cross multiply
    20,686,552.40x = 31,047,543.30 × 9,189,712.10
  4. Step 4: Simplify right side
    20,686,552.40x = 285,317,984,339,283.94
  5. Step 5: Solve for x
    x = 285,317,984,339,283.94/20,686,552.40
  6. Step 6: Final answer
    x = 13,792,437.66

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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.