Home / 125,473,718.80-188,210,578.20-99,645,686.20

Finding the Fourth Proportional to 125,473,718.80, 188,210,578.20 and 99,645,686.20

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Solution

The fourth proportional to 125,473,718.80, 188,210,578.20 and 99,645,686.20 is: 149,468,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,473,718.80 : 188,210,578.20 = 99,645,686.20 : x
  2. Step 2: Convert to fraction form
    125,473,718.80/188,210,578.20 = 99,645,686.20/x
  3. Step 3: Cross multiply
    125,473,718.80x = 188,210,578.20 × 99,645,686.20
  4. Step 4: Simplify right side
    125,473,718.80x = 18,754,372,214,837,760
  5. Step 5: Solve for x
    x = 18,754,372,214,837,760/125,473,718.80
  6. Step 6: Final answer
    x = 149,468,529.30

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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.