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Finding the Third Proportional to 179,478,432 and 390,403,222

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Solution

The third proportional to 179,478,432 and 390,403,222 is: 849,208,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,478,432 : 390,403,222 = 390,403,222 : x
  2. Step 2: Convert to fraction form
    179,478,432/390,403,222 = 390,403,222/x
  3. Step 3: Cross multiply
    179,478,432x = 390,403,222 × 390,403,222
  4. Step 4: Simplify right side
    179,478,432x = 152,414,675,747,981,280
  5. Step 5: Solve for x
    x = 152,414,675,747,981,280/179,478,432
  6. Step 6: Final answer
    x = 849,208,866.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.