Home / 213,254,421.28-319,881,631.92-51,696,357.28

Finding the Fourth Proportional to 213,254,421.28, 319,881,631.92 and 51,696,357.28

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Solution

The fourth proportional to 213,254,421.28, 319,881,631.92 and 51,696,357.28 is: 77,544,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,254,421.28 : 319,881,631.92 = 51,696,357.28 : x
  2. Step 2: Convert to fraction form
    213,254,421.28/319,881,631.92 = 51,696,357.28/x
  3. Step 3: Cross multiply
    213,254,421.28x = 319,881,631.92 × 51,696,357.28
  4. Step 4: Simplify right side
    213,254,421.28x = 16,536,715,131,045,774
  5. Step 5: Solve for x
    x = 16,536,715,131,045,774/213,254,421.28
  6. Step 6: Final answer
    x = 77,544,535.92

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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.