Home / 13,152,102.30-18,155,497.95-7,997,119.74

Finding the Fourth Proportional to 13,152,102.30, 18,155,497.95 and 7,997,119.74

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Solution

The fourth proportional to 13,152,102.30, 18,155,497.95 and 7,997,119.74 is: 11,039,428.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152,102.30 : 18,155,497.95 = 7,997,119.74 : x
  2. Step 2: Convert to fraction form
    13,152,102.30/18,155,497.95 = 7,997,119.74/x
  3. Step 3: Cross multiply
    13,152,102.30x = 18,155,497.95 × 7,997,119.74
  4. Step 4: Simplify right side
    13,152,102.30x = 145,191,691,045,474.53
  5. Step 5: Solve for x
    x = 145,191,691,045,474.53/13,152,102.30
  6. Step 6: Final answer
    x = 11,039,428.35

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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.