Home / 138,746,182.06-208,132,066.28-45,373,637.91

Finding the Fourth Proportional to 138,746,182.06, 208,132,066.28 and 45,373,637.91

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Solution

The fourth proportional to 138,746,182.06, 208,132,066.28 and 45,373,637.91 is: 68,064,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746,182.06 : 208,132,066.28 = 45,373,637.91 : x
  2. Step 2: Convert to fraction form
    138,746,182.06/208,132,066.28 = 45,373,637.91/x
  3. Step 3: Cross multiply
    138,746,182.06x = 208,132,066.28 × 45,373,637.91
  4. Step 4: Simplify right side
    138,746,182.06x = 9,443,709,012,735,406
  5. Step 5: Solve for x
    x = 9,443,709,012,735,406/138,746,182.06
  6. Step 6: Final answer
    x = 68,064,640.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.