Home / 121,144,139.80-181,716,209.70-56,426,435.80

Finding the Fourth Proportional to 121,144,139.80, 181,716,209.70 and 56,426,435.80

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Solution

The fourth proportional to 121,144,139.80, 181,716,209.70 and 56,426,435.80 is: 84,639,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144,139.80 : 181,716,209.70 = 56,426,435.80 : x
  2. Step 2: Convert to fraction form
    121,144,139.80/181,716,209.70 = 56,426,435.80/x
  3. Step 3: Cross multiply
    121,144,139.80x = 181,716,209.70 × 56,426,435.80
  4. Step 4: Simplify right side
    121,144,139.80x = 10,253,598,040,456,386
  5. Step 5: Solve for x
    x = 10,253,598,040,456,386/121,144,139.80
  6. Step 6: Final answer
    x = 84,639,653.70

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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.