Home / 402,930,872.16-604,519,656.06-206,333,483.70

Finding the Fourth Proportional to 402,930,872.16, 604,519,656.06 and 206,333,483.70

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Solution

The fourth proportional to 402,930,872.16, 604,519,656.06 and 206,333,483.70 is: 309,563,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,872.16 : 604,519,656.06 = 206,333,483.70 : x
  2. Step 2: Convert to fraction form
    402,930,872.16/604,519,656.06 = 206,333,483.70/x
  3. Step 3: Cross multiply
    402,930,872.16x = 604,519,656.06 × 206,333,483.70
  4. Step 4: Simplify right side
    402,930,872.16x = 124,732,646,599,985,600
  5. Step 5: Solve for x
    x = 124,732,646,599,985,600/402,930,872.16
  6. Step 6: Final answer
    x = 309,563,389.70

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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.