Home / 10,728,521.60-16,071,787.20-6,455,998.40

Finding the Fourth Proportional to 10,728,521.60, 16,071,787.20 and 6,455,998.40

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Solution

The fourth proportional to 10,728,521.60, 16,071,787.20 and 6,455,998.40 is: 9,671,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728,521.60 : 16,071,787.20 = 6,455,998.40 : x
  2. Step 2: Convert to fraction form
    10,728,521.60/16,071,787.20 = 6,455,998.40/x
  3. Step 3: Cross multiply
    10,728,521.60x = 16,071,787.20 × 6,455,998.40
  4. Step 4: Simplify right side
    10,728,521.60x = 103,759,432,448,340.48
  5. Step 5: Solve for x
    x = 103,759,432,448,340.48/10,728,521.60
  6. Step 6: Final answer
    x = 9,671,363.52

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1.5x scale

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.