Home / 13,438,312.96-18,546,446.28-7,637,966.60

Finding the Fourth Proportional to 13,438,312.96, 18,546,446.28 and 7,637,966.60

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Solution

The fourth proportional to 13,438,312.96, 18,546,446.28 and 7,637,966.60 is: 10,541,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,312.96 : 18,546,446.28 = 7,637,966.60 : x
  2. Step 2: Convert to fraction form
    13,438,312.96/18,546,446.28 = 7,637,966.60/x
  3. Step 3: Cross multiply
    13,438,312.96x = 18,546,446.28 × 7,637,966.60
  4. Step 4: Simplify right side
    13,438,312.96x = 141,657,137,235,334.25
  5. Step 5: Solve for x
    x = 141,657,137,235,334.25/13,438,312.96
  6. Step 6: Final answer
    x = 10,541,288.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.