Home / 19,105,479.32-28,631,705.22-8,705,281.68

Finding the Fourth Proportional to 19,105,479.32, 28,631,705.22 and 8,705,281.68

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Solution

The fourth proportional to 19,105,479.32, 28,631,705.22 and 8,705,281.68 is: 13,045,841.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105,479.32 : 28,631,705.22 = 8,705,281.68 : x
  2. Step 2: Convert to fraction form
    19,105,479.32/28,631,705.22 = 8,705,281.68/x
  3. Step 3: Cross multiply
    19,105,479.32x = 28,631,705.22 × 8,705,281.68
  4. Step 4: Simplify right side
    19,105,479.32x = 249,247,058,918,826.34
  5. Step 5: Solve for x
    x = 249,247,058,918,826.34/19,105,479.32
  6. Step 6: Final answer
    x = 13,045,841.71

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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.