Home / 78,246,117.45-117,369,176.18-27,111,141.45

Finding the Fourth Proportional to 78,246,117.45, 117,369,176.18 and 27,111,141.45

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Solution

The fourth proportional to 78,246,117.45, 117,369,176.18 and 27,111,141.45 is: 40,666,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,246,117.45 : 117,369,176.18 = 27,111,141.45 : x
  2. Step 2: Convert to fraction form
    78,246,117.45/117,369,176.18 = 27,111,141.45/x
  3. Step 3: Cross multiply
    78,246,117.45x = 117,369,176.18 × 27,111,141.45
  4. Step 4: Simplify right side
    78,246,117.45x = 3,182,012,337,150,395
  5. Step 5: Solve for x
    x = 3,182,012,337,150,395/78,246,117.45
  6. Step 6: Final answer
    x = 40,666,712.18

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Double scale
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Similar ratio
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1.5x scale

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.