Home / 15,636,875.34-21,578,873.13-8,761,406.61

Finding the Fourth Proportional to 15,636,875.34, 21,578,873.13 and 8,761,406.61

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Solution

The fourth proportional to 15,636,875.34, 21,578,873.13 and 8,761,406.61 is: 12,090,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636,875.34 : 21,578,873.13 = 8,761,406.61 : x
  2. Step 2: Convert to fraction form
    15,636,875.34/21,578,873.13 = 8,761,406.61/x
  3. Step 3: Cross multiply
    15,636,875.34x = 21,578,873.13 × 8,761,406.61
  4. Step 4: Simplify right side
    15,636,875.34x = 189,061,281,677,533.38
  5. Step 5: Solve for x
    x = 189,061,281,677,533.38/15,636,875.34
  6. Step 6: Final answer
    x = 12,090,732.81

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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.