Home / 136,606,878.23-188,518,987.65-74,727,217.40

Finding the Fourth Proportional to 136,606,878.23, 188,518,987.65 and 74,727,217.40

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Solution

The fourth proportional to 136,606,878.23, 188,518,987.65 and 74,727,217.40 is: 103,124,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,606,878.23 : 188,518,987.65 = 74,727,217.40 : x
  2. Step 2: Convert to fraction form
    136,606,878.23/188,518,987.65 = 74,727,217.40/x
  3. Step 3: Cross multiply
    136,606,878.23x = 188,518,987.65 × 74,727,217.40
  4. Step 4: Simplify right side
    136,606,878.23x = 14,087,499,373,206,870
  5. Step 5: Solve for x
    x = 14,087,499,373,206,870/136,606,878.23
  6. Step 6: Final answer
    x = 103,124,378.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.