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Finding the Third Proportional to 143,893,784 and 316,478,938

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Solution

The third proportional to 143,893,784 and 316,478,938 is: 696,061,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,893,784 : 316,478,938 = 316,478,938 : x
  2. Step 2: Convert to fraction form
    143,893,784/316,478,938 = 316,478,938/x
  3. Step 3: Cross multiply
    143,893,784x = 316,478,938 × 316,478,938
  4. Step 4: Simplify right side
    143,893,784x = 100,158,918,197,607,840
  5. Step 5: Solve for x
    x = 100,158,918,197,607,840/143,893,784
  6. Step 6: Final answer
    x = 696,061,465.71

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.