Home / 385,577,278.50-532,111,901.10-216,032,978.82

Finding the Fourth Proportional to 385,577,278.50, 532,111,901.10 and 216,032,978.82

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Solution

The fourth proportional to 385,577,278.50, 532,111,901.10 and 216,032,978.82 is: 298,134,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,577,278.50 : 532,111,901.10 = 216,032,978.82 : x
  2. Step 2: Convert to fraction form
    385,577,278.50/532,111,901.10 = 216,032,978.82/x
  3. Step 3: Cross multiply
    385,577,278.50x = 532,111,901.10 × 216,032,978.82
  4. Step 4: Simplify right side
    385,577,278.50x = 114,953,719,060,206,240
  5. Step 5: Solve for x
    x = 114,953,719,060,206,240/385,577,278.50
  6. Step 6: Final answer
    x = 298,134,058.90

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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.