Home / 111,355,781.40-167,033,672.10-82,657,967.40

Finding the Fourth Proportional to 111,355,781.40, 167,033,672.10 and 82,657,967.40

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Solution

The fourth proportional to 111,355,781.40, 167,033,672.10 and 82,657,967.40 is: 123,986,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,355,781.40 : 167,033,672.10 = 82,657,967.40 : x
  2. Step 2: Convert to fraction form
    111,355,781.40/167,033,672.10 = 82,657,967.40/x
  3. Step 3: Cross multiply
    111,355,781.40x = 167,033,672.10 × 82,657,967.40
  4. Step 4: Simplify right side
    111,355,781.40x = 13,806,663,823,144,090
  5. Step 5: Solve for x
    x = 13,806,663,823,144,090/111,355,781.40
  6. Step 6: Final answer
    x = 123,986,951.10

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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.