Home / 430,156,237.20-644,039,962.20-418,212,301.20

Finding the Fourth Proportional to 430,156,237.20, 644,039,962.20 and 418,212,301.20

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Solution

The fourth proportional to 430,156,237.20, 644,039,962.20 and 418,212,301.20 is: 626,157,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,156,237.20 : 644,039,962.20 = 418,212,301.20 : x
  2. Step 2: Convert to fraction form
    430,156,237.20/644,039,962.20 = 418,212,301.20/x
  3. Step 3: Cross multiply
    430,156,237.20x = 644,039,962.20 × 418,212,301.20
  4. Step 4: Simplify right side
    430,156,237.20x = 269,345,434,656,423,040
  5. Step 5: Solve for x
    x = 269,345,434,656,423,040/430,156,237.20
  6. Step 6: Final answer
    x = 626,157,222.34

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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.