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Finding the Third Proportional to 298,508,070 and 645,911,628

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Solution

The third proportional to 298,508,070 and 645,911,628 is: 1,397,623,291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,508,070 : 645,911,628 = 645,911,628 : x
  2. Step 2: Convert to fraction form
    298,508,070/645,911,628 = 645,911,628/x
  3. Step 3: Cross multiply
    298,508,070x = 645,911,628 × 645,911,628
  4. Step 4: Simplify right side
    298,508,070x = 417,201,831,185,610,368
  5. Step 5: Solve for x
    x = 417,201,831,185,610,368/298,508,070
  6. Step 6: Final answer
    x = 1,397,623,291.01

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.