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Finding the Third Proportional to 312,587,888 and 459,516,040

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Solution

The third proportional to 312,587,888 and 459,516,040 is: 675,505,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,587,888 : 459,516,040 = 459,516,040 : x
  2. Step 2: Convert to fraction form
    312,587,888/459,516,040 = 459,516,040/x
  3. Step 3: Cross multiply
    312,587,888x = 459,516,040 × 459,516,040
  4. Step 4: Simplify right side
    312,587,888x = 211,154,991,017,281,600
  5. Step 5: Solve for x
    x = 211,154,991,017,281,600/312,587,888
  6. Step 6: Final answer
    x = 675,505,990.87

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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.