Home / 125,473,489.80-188,210,234.70-99,645,457.20

Finding the Fourth Proportional to 125,473,489.80, 188,210,234.70 and 99,645,457.20

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Solution

The fourth proportional to 125,473,489.80, 188,210,234.70 and 99,645,457.20 is: 149,468,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,473,489.80 : 188,210,234.70 = 99,645,457.20 : x
  2. Step 2: Convert to fraction form
    125,473,489.80/188,210,234.70 = 99,645,457.20/x
  3. Step 3: Cross multiply
    125,473,489.80x = 188,210,234.70 × 99,645,457.20
  4. Step 4: Simplify right side
    125,473,489.80x = 18,754,294,886,400,804
  5. Step 5: Solve for x
    x = 18,754,294,886,400,804/125,473,489.80
  6. Step 6: Final answer
    x = 149,468,185.80

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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.