Home / 145,111,937.91-315,732,588.19

Finding the Third Proportional to 145,111,937.91 and 315,732,588.19

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Solution

The third proportional to 145,111,937.91 and 315,732,588.19 is: 686,966,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,111,937.91 : 315,732,588.19 = 315,732,588.19 : x
  2. Step 2: Convert to fraction form
    145,111,937.91/315,732,588.19 = 315,732,588.19/x
  3. Step 3: Cross multiply
    145,111,937.91x = 315,732,588.19 × 315,732,588.19
  4. Step 4: Simplify right side
    145,111,937.91x = 99,687,067,243,577,472
  5. Step 5: Solve for x
    x = 99,687,067,243,577,472/145,111,937.91
  6. Step 6: Final answer
    x = 686,966,687.11

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.