Home / 21,955,225.76-30,298,650.24-12,788,459

Finding the Fourth Proportional to 21,955,225.76, 30,298,650.24 and 12,788,459

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Solution

The fourth proportional to 21,955,225.76, 30,298,650.24 and 12,788,459 is: 17,648,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,225.76 : 30,298,650.24 = 12,788,459 : x
  2. Step 2: Convert to fraction form
    21,955,225.76/30,298,650.24 = 12,788,459/x
  3. Step 3: Cross multiply
    21,955,225.76x = 30,298,650.24 × 12,788,459
  4. Step 4: Simplify right side
    21,955,225.76x = 387,473,046,349,580.12
  5. Step 5: Solve for x
    x = 387,473,046,349,580.12/21,955,225.76
  6. Step 6: Final answer
    x = 17,648,328.95

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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.