Home / 21,009,386.84-28,992,953.90-11,351,594.84

Finding the Fourth Proportional to 21,009,386.84, 28,992,953.90 and 11,351,594.84

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Solution

The fourth proportional to 21,009,386.84, 28,992,953.90 and 11,351,594.84 is: 15,665,200.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,386.84 : 28,992,953.90 = 11,351,594.84 : x
  2. Step 2: Convert to fraction form
    21,009,386.84/28,992,953.90 = 11,351,594.84/x
  3. Step 3: Cross multiply
    21,009,386.84x = 28,992,953.90 × 11,351,594.84
  4. Step 4: Simplify right side
    21,009,386.84x = 329,116,265,830,839.88
  5. Step 5: Solve for x
    x = 329,116,265,830,839.88/21,009,386.84
  6. Step 6: Final answer
    x = 15,665,200.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.