Home / 21,119,875.77-31,684,756.70-6,546,033.60

Finding the Fourth Proportional to 21,119,875.77, 31,684,756.70 and 6,546,033.60

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Solution

The fourth proportional to 21,119,875.77, 31,684,756.70 and 6,546,033.60 is: 9,820,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119,875.77 : 31,684,756.70 = 6,546,033.60 : x
  2. Step 2: Convert to fraction form
    21,119,875.77/31,684,756.70 = 6,546,033.60/x
  3. Step 3: Cross multiply
    21,119,875.77x = 31,684,756.70 × 6,546,033.60
  4. Step 4: Simplify right side
    21,119,875.77x = 207,409,481,863,572.38
  5. Step 5: Solve for x
    x = 207,409,481,863,572.38/21,119,875.77
  6. Step 6: Final answer
    x = 9,820,582.47

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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.