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Finding the Third Proportional to 388,598,894 and 555,700,686

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Solution

The third proportional to 388,598,894 and 555,700,686 is: 794,658,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,598,894 : 555,700,686 = 555,700,686 : x
  2. Step 2: Convert to fraction form
    388,598,894/555,700,686 = 555,700,686/x
  3. Step 3: Cross multiply
    388,598,894x = 555,700,686 × 555,700,686
  4. Step 4: Simplify right side
    388,598,894x = 308,803,252,420,870,592
  5. Step 5: Solve for x
    x = 308,803,252,420,870,592/388,598,894
  6. Step 6: Final answer
    x = 794,658,083.67

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.