Home / 21,088,988.69-31,635,976.21-7,439,287.46

Finding the Fourth Proportional to 21,088,988.69, 31,635,976.21 and 7,439,287.46

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Solution

The fourth proportional to 21,088,988.69, 31,635,976.21 and 7,439,287.46 is: 11,159,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088,988.69 : 31,635,976.21 = 7,439,287.46 : x
  2. Step 2: Convert to fraction form
    21,088,988.69/31,635,976.21 = 7,439,287.46/x
  3. Step 3: Cross multiply
    21,088,988.69x = 31,635,976.21 × 7,439,287.46
  4. Step 4: Simplify right side
    21,088,988.69x = 235,349,120,927,133.22
  5. Step 5: Solve for x
    x = 235,349,120,927,133.22/21,088,988.69
  6. Step 6: Final answer
    x = 11,159,810.67

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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.