Home / 12,957,261.12-17,881,155.36-7,156,190.16

Finding the Fourth Proportional to 12,957,261.12, 17,881,155.36 and 7,156,190.16

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Solution

The fourth proportional to 12,957,261.12, 17,881,155.36 and 7,156,190.16 is: 9,875,616.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957,261.12 : 17,881,155.36 = 7,156,190.16 : x
  2. Step 2: Convert to fraction form
    12,957,261.12/17,881,155.36 = 7,156,190.16/x
  3. Step 3: Cross multiply
    12,957,261.12x = 17,881,155.36 × 7,156,190.16
  4. Step 4: Simplify right side
    12,957,261.12x = 127,960,948,036,663.25
  5. Step 5: Solve for x
    x = 127,960,948,036,663.25/12,957,261.12
  6. Step 6: Final answer
    x = 9,875,616.99

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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.