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Finding the Third Proportional to 4,357,316 and 6,389,478

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Solution

The third proportional to 4,357,316 and 6,389,478 is: 9,369,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,357,316 : 6,389,478 = 6,389,478 : x
  2. Step 2: Convert to fraction form
    4,357,316/6,389,478 = 6,389,478/x
  3. Step 3: Cross multiply
    4,357,316x = 6,389,478 × 6,389,478
  4. Step 4: Simplify right side
    4,357,316x = 40,825,429,112,484
  5. Step 5: Solve for x
    x = 40,825,429,112,484/4,357,316
  6. Step 6: Final answer
    x = 9,369,398.30

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.