Home / 137,280,998.68-189,459,461.65-77,752,883.68

Finding the Fourth Proportional to 137,280,998.68, 189,459,461.65 and 77,752,883.68

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Solution

The fourth proportional to 137,280,998.68, 189,459,461.65 and 77,752,883.68 is: 107,305,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,280,998.68 : 189,459,461.65 = 77,752,883.68 : x
  2. Step 2: Convert to fraction form
    137,280,998.68/189,459,461.65 = 77,752,883.68/x
  3. Step 3: Cross multiply
    137,280,998.68x = 189,459,461.65 × 77,752,883.68
  4. Step 4: Simplify right side
    137,280,998.68x = 14,731,019,482,800,574
  5. Step 5: Solve for x
    x = 14,731,019,482,800,574/137,280,998.68
  6. Step 6: Final answer
    x = 107,305,596.73

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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.