Home / 28,248,317.40-42,378,005.70-12,074,237.40

Finding the Fourth Proportional to 28,248,317.40, 42,378,005.70 and 12,074,237.40

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Solution

The fourth proportional to 28,248,317.40, 42,378,005.70 and 12,074,237.40 is: 18,113,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248,317.40 : 42,378,005.70 = 12,074,237.40 : x
  2. Step 2: Convert to fraction form
    28,248,317.40/42,378,005.70 = 12,074,237.40/x
  3. Step 3: Cross multiply
    28,248,317.40x = 42,378,005.70 × 12,074,237.40
  4. Step 4: Simplify right side
    28,248,317.40x = 511,682,101,360,353.25
  5. Step 5: Solve for x
    x = 511,682,101,360,353.25/28,248,317.40
  6. Step 6: Final answer
    x = 18,113,719.63

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1.5x scale

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.