Home / 21,053,856.30-31,580,784.45-5,907,787.80

Finding the Fourth Proportional to 21,053,856.30, 31,580,784.45 and 5,907,787.80

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Solution

The fourth proportional to 21,053,856.30, 31,580,784.45 and 5,907,787.80 is: 8,861,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053,856.30 : 31,580,784.45 = 5,907,787.80 : x
  2. Step 2: Convert to fraction form
    21,053,856.30/31,580,784.45 = 5,907,787.80/x
  3. Step 3: Cross multiply
    21,053,856.30x = 31,580,784.45 × 5,907,787.80
  4. Step 4: Simplify right side
    21,053,856.30x = 186,572,573,088,139.69
  5. Step 5: Solve for x
    x = 186,572,573,088,139.69/21,053,856.30
  6. Step 6: Final answer
    x = 8,861,681.70

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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.