Home / 21,308,102.70-31,925,412.45-9,925,205.10

Finding the Fourth Proportional to 21,308,102.70, 31,925,412.45 and 9,925,205.10

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Solution

The fourth proportional to 21,308,102.70, 31,925,412.45 and 9,925,205.10 is: 14,870,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,102.70 : 31,925,412.45 = 9,925,205.10 : x
  2. Step 2: Convert to fraction form
    21,308,102.70/31,925,412.45 = 9,925,205.10/x
  3. Step 3: Cross multiply
    21,308,102.70x = 31,925,412.45 × 9,925,205.10
  4. Step 4: Simplify right side
    21,308,102.70x = 316,866,266,468,343.50
  5. Step 5: Solve for x
    x = 316,866,266,468,343.50/21,308,102.70
  6. Step 6: Final answer
    x = 14,870,693.60

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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.