Home / 121,063,708.40-181,595,562.60-99,806,068.40

Finding the Fourth Proportional to 121,063,708.40, 181,595,562.60 and 99,806,068.40

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Solution

The fourth proportional to 121,063,708.40, 181,595,562.60 and 99,806,068.40 is: 149,709,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,063,708.40 : 181,595,562.60 = 99,806,068.40 : x
  2. Step 2: Convert to fraction form
    121,063,708.40/181,595,562.60 = 99,806,068.40/x
  3. Step 3: Cross multiply
    121,063,708.40x = 181,595,562.60 × 99,806,068.40
  4. Step 4: Simplify right side
    121,063,708.40x = 18,124,339,141,992,084
  5. Step 5: Solve for x
    x = 18,124,339,141,992,084/121,063,708.40
  6. Step 6: Final answer
    x = 149,709,102.60

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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.