Home / 430,620,963.84-644,986,488.24-355,999,010.76

Finding the Fourth Proportional to 430,620,963.84, 644,986,488.24 and 355,999,010.76

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Solution

The fourth proportional to 430,620,963.84, 644,986,488.24 and 355,999,010.76 is: 533,217,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,620,963.84 : 644,986,488.24 = 355,999,010.76 : x
  2. Step 2: Convert to fraction form
    430,620,963.84/644,986,488.24 = 355,999,010.76/x
  3. Step 3: Cross multiply
    430,620,963.84x = 644,986,488.24 × 355,999,010.76
  4. Step 4: Simplify right side
    430,620,963.84x = 229,614,551,767,006,368
  5. Step 5: Solve for x
    x = 229,614,551,767,006,368/430,620,963.84
  6. Step 6: Final answer
    x = 533,217,309.53

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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.