Home / 21,911,554.60-30,238,835.51-12,121,830.11

Finding the Fourth Proportional to 21,911,554.60, 30,238,835.51 and 12,121,830.11

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Solution

The fourth proportional to 21,911,554.60, 30,238,835.51 and 12,121,830.11 is: 16,728,618.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911,554.60 : 30,238,835.51 = 12,121,830.11 : x
  2. Step 2: Convert to fraction form
    21,911,554.60/30,238,835.51 = 12,121,830.11/x
  3. Step 3: Cross multiply
    21,911,554.60x = 30,238,835.51 × 12,121,830.11
  4. Step 4: Simplify right side
    21,911,554.60x = 366,550,026,776,455.19
  5. Step 5: Solve for x
    x = 366,550,026,776,455.19/21,911,554.60
  6. Step 6: Final answer
    x = 16,728,618.00

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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.