Home / 418,330,423.89-627,572,235.51-172,552,980.06

Finding the Fourth Proportional to 418,330,423.89, 627,572,235.51 and 172,552,980.06

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Solution

The fourth proportional to 418,330,423.89, 627,572,235.51 and 172,552,980.06 is: 258,861,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,330,423.89 : 627,572,235.51 = 172,552,980.06 : x
  2. Step 2: Convert to fraction form
    418,330,423.89/627,572,235.51 = 172,552,980.06/x
  3. Step 3: Cross multiply
    418,330,423.89x = 627,572,235.51 × 172,552,980.06
  4. Step 4: Simplify right side
    418,330,423.89x = 108,289,459,440,166,656
  5. Step 5: Solve for x
    x = 108,289,459,440,166,656/418,330,423.89
  6. Step 6: Final answer
    x = 258,861,065.93

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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.