Home / 13,287,455.20-19,931,182.80-9,928,223.20

Finding the Fourth Proportional to 13,287,455.20, 19,931,182.80 and 9,928,223.20

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Solution

The fourth proportional to 13,287,455.20, 19,931,182.80 and 9,928,223.20 is: 14,892,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,455.20 : 19,931,182.80 = 9,928,223.20 : x
  2. Step 2: Convert to fraction form
    13,287,455.20/19,931,182.80 = 9,928,223.20/x
  3. Step 3: Cross multiply
    13,287,455.20x = 19,931,182.80 × 9,928,223.20
  4. Step 4: Simplify right side
    13,287,455.20x = 197,881,231,478,400.94
  5. Step 5: Solve for x
    x = 197,881,231,478,400.94/13,287,455.20
  6. Step 6: Final answer
    x = 14,892,334.80

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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.