Home / 13,128,731.57-19,700,035.65-9,315,199.53

Finding the Fourth Proportional to 13,128,731.57, 19,700,035.65 and 9,315,199.53

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Solution

The fourth proportional to 13,128,731.57, 19,700,035.65 and 9,315,199.53 is: 13,977,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,731.57 : 19,700,035.65 = 9,315,199.53 : x
  2. Step 2: Convert to fraction form
    13,128,731.57/19,700,035.65 = 9,315,199.53/x
  3. Step 3: Cross multiply
    13,128,731.57x = 19,700,035.65 × 9,315,199.53
  4. Step 4: Simplify right side
    13,128,731.57x = 183,509,762,827,863.22
  5. Step 5: Solve for x
    x = 183,509,762,827,863.22/13,128,731.57
  6. Step 6: Final answer
    x = 13,977,722.21

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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.