Home / 20,710,983.78-31,066,459.25-5,564,915.28

Finding the Fourth Proportional to 20,710,983.78, 31,066,459.25 and 5,564,915.28

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Solution

The fourth proportional to 20,710,983.78, 31,066,459.25 and 5,564,915.28 is: 8,347,368.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,983.78 : 31,066,459.25 = 5,564,915.28 : x
  2. Step 2: Convert to fraction form
    20,710,983.78/31,066,459.25 = 5,564,915.28/x
  3. Step 3: Cross multiply
    20,710,983.78x = 31,066,459.25 × 5,564,915.28
  4. Step 4: Simplify right side
    20,710,983.78x = 172,882,213,592,665.50
  5. Step 5: Solve for x
    x = 172,882,213,592,665.50/20,710,983.78
  6. Step 6: Final answer
    x = 8,347,368.50

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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.