Home / 21,020,928.60-31,532,429.70-10,943,232.60

Finding the Fourth Proportional to 21,020,928.60, 31,532,429.70 and 10,943,232.60

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Solution

The fourth proportional to 21,020,928.60, 31,532,429.70 and 10,943,232.60 is: 16,415,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,928.60 : 31,532,429.70 = 10,943,232.60 : x
  2. Step 2: Convert to fraction form
    21,020,928.60/31,532,429.70 = 10,943,232.60/x
  3. Step 3: Cross multiply
    21,020,928.60x = 31,532,429.70 × 10,943,232.60
  4. Step 4: Simplify right side
    21,020,928.60x = 345,066,712,650,248.19
  5. Step 5: Solve for x
    x = 345,066,712,650,248.19/21,020,928.60
  6. Step 6: Final answer
    x = 16,415,388.65

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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.