Home / 20,899,389.03-31,301,355.18-9,977,261.74

Finding the Fourth Proportional to 20,899,389.03, 31,301,355.18 and 9,977,261.74

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Solution

The fourth proportional to 20,899,389.03, 31,301,355.18 and 9,977,261.74 is: 14,943,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,389.03 : 31,301,355.18 = 9,977,261.74 : x
  2. Step 2: Convert to fraction form
    20,899,389.03/31,301,355.18 = 9,977,261.74/x
  3. Step 3: Cross multiply
    20,899,389.03x = 31,301,355.18 × 9,977,261.74
  4. Step 4: Simplify right side
    20,899,389.03x = 312,301,813,447,564.81
  5. Step 5: Solve for x
    x = 312,301,813,447,564.81/20,899,389.03
  6. Step 6: Final answer
    x = 14,943,107.34

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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.