Home / 385,641,970.78-532,263,163.35-229,096,044.22

Finding the Fourth Proportional to 385,641,970.78, 532,263,163.35 and 229,096,044.22

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Solution

The fourth proportional to 385,641,970.78, 532,263,163.35 and 229,096,044.22 is: 316,198,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,641,970.78 : 532,263,163.35 = 229,096,044.22 : x
  2. Step 2: Convert to fraction form
    385,641,970.78/532,263,163.35 = 229,096,044.22/x
  3. Step 3: Cross multiply
    385,641,970.78x = 532,263,163.35 × 229,096,044.22
  4. Step 4: Simplify right side
    385,641,970.78x = 121,939,385,207,508,688
  5. Step 5: Solve for x
    x = 121,939,385,207,508,688/385,641,970.78
  6. Step 6: Final answer
    x = 316,198,428.72

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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.