Home / 12,109,189.95-16,714,730.84-7,215,946.74

Finding the Fourth Proportional to 12,109,189.95, 16,714,730.84 and 7,215,946.74

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Solution

The fourth proportional to 12,109,189.95, 16,714,730.84 and 7,215,946.74 is: 9,960,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,189.95 : 16,714,730.84 = 7,215,946.74 : x
  2. Step 2: Convert to fraction form
    12,109,189.95/16,714,730.84 = 7,215,946.74/x
  3. Step 3: Cross multiply
    12,109,189.95x = 16,714,730.84 × 7,215,946.74
  4. Step 4: Simplify right side
    12,109,189.95x = 120,612,607,514,875.47
  5. Step 5: Solve for x
    x = 120,612,607,514,875.47/12,109,189.95
  6. Step 6: Final answer
    x = 9,960,419.15

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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.