Home / 139,919,666.12-209,871,932.22-42,875,653.94

Finding the Fourth Proportional to 139,919,666.12, 209,871,932.22 and 42,875,653.94

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Solution

The fourth proportional to 139,919,666.12, 209,871,932.22 and 42,875,653.94 is: 64,311,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919,666.12 : 209,871,932.22 = 42,875,653.94 : x
  2. Step 2: Convert to fraction form
    139,919,666.12/209,871,932.22 = 42,875,653.94/x
  3. Step 3: Cross multiply
    139,919,666.12x = 209,871,932.22 × 42,875,653.94
  4. Step 4: Simplify right side
    139,919,666.12x = 8,998,396,337,583,855
  5. Step 5: Solve for x
    x = 8,998,396,337,583,855/139,919,666.12
  6. Step 6: Final answer
    x = 64,311,162.16

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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.