Home / 21,870,112.65-32,805,168.98-13,260,768.45

Finding the Fourth Proportional to 21,870,112.65, 32,805,168.98 and 13,260,768.45

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Solution

The fourth proportional to 21,870,112.65, 32,805,168.98 and 13,260,768.45 is: 19,891,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,112.65 : 32,805,168.98 = 13,260,768.45 : x
  2. Step 2: Convert to fraction form
    21,870,112.65/32,805,168.98 = 13,260,768.45/x
  3. Step 3: Cross multiply
    21,870,112.65x = 32,805,168.98 × 13,260,768.45
  4. Step 4: Simplify right side
    21,870,112.65x = 435,021,749,740,598.81
  5. Step 5: Solve for x
    x = 435,021,749,740,598.81/21,870,112.65
  6. Step 6: Final answer
    x = 19,891,152.68

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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.