Home / 28,027,479.08-38,677,867.68-15,636,835.28

Finding the Fourth Proportional to 28,027,479.08, 38,677,867.68 and 15,636,835.28

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Solution

The fourth proportional to 28,027,479.08, 38,677,867.68 and 15,636,835.28 is: 21,578,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027,479.08 : 38,677,867.68 = 15,636,835.28 : x
  2. Step 2: Convert to fraction form
    28,027,479.08/38,677,867.68 = 15,636,835.28/x
  3. Step 3: Cross multiply
    28,027,479.08x = 38,677,867.68 × 15,636,835.28
  4. Step 4: Simplify right side
    28,027,479.08x = 604,799,445,893,795.75
  5. Step 5: Solve for x
    x = 604,799,445,893,795.75/28,027,479.08
  6. Step 6: Final answer
    x = 21,578,802.87

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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.