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Finding the Fourth Proportional to 625,503,740.05, 863,208,345.48 and 343,243,712.03

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Solution

The fourth proportional to 625,503,740.05, 863,208,345.48 and 343,243,712.03 is: 473,683,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,503,740.05 : 863,208,345.48 = 343,243,712.03 : x
  2. Step 2: Convert to fraction form
    625,503,740.05/863,208,345.48 = 343,243,712.03/x
  3. Step 3: Cross multiply
    625,503,740.05x = 863,208,345.48 × 343,243,712.03
  4. Step 4: Simplify right side
    625,503,740.05x = 296,290,836,754,718,592
  5. Step 5: Solve for x
    x = 296,290,836,754,718,592/625,503,740.05
  6. Step 6: Final answer
    x = 473,683,557.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.