Home / 21,309,302.20-31,927,211.70-9,926,404.60

Finding the Fourth Proportional to 21,309,302.20, 31,927,211.70 and 9,926,404.60

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Solution

The fourth proportional to 21,309,302.20, 31,927,211.70 and 9,926,404.60 is: 14,872,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,302.20 : 31,927,211.70 = 9,926,404.60 : x
  2. Step 2: Convert to fraction form
    21,309,302.20/31,927,211.70 = 9,926,404.60/x
  3. Step 3: Cross multiply
    21,309,302.20x = 31,927,211.70 × 9,926,404.60
  4. Step 4: Simplify right side
    21,309,302.20x = 316,922,421,084,053.81
  5. Step 5: Solve for x
    x = 316,922,421,084,053.81/21,309,302.20
  6. Step 6: Final answer
    x = 14,872,491.75

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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.