Home / 138,971,825.23-208,386,491.62-73,428,210.10

Finding the Fourth Proportional to 138,971,825.23, 208,386,491.62 and 73,428,210.10

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Solution

The fourth proportional to 138,971,825.23, 208,386,491.62 and 73,428,210.10 is: 110,104,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,971,825.23 : 208,386,491.62 = 73,428,210.10 : x
  2. Step 2: Convert to fraction form
    138,971,825.23/208,386,491.62 = 73,428,210.10/x
  3. Step 3: Cross multiply
    138,971,825.23x = 208,386,491.62 × 73,428,210.10
  4. Step 4: Simplify right side
    138,971,825.23x = 15,301,447,088,675,248
  5. Step 5: Solve for x
    x = 15,301,447,088,675,248/138,971,825.23
  6. Step 6: Final answer
    x = 110,104,670.95

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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.