Home / 124,703,982.66-187,065,946.73-42,789,897.66

Finding the Fourth Proportional to 124,703,982.66, 187,065,946.73 and 42,789,897.66

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Solution

The fourth proportional to 124,703,982.66, 187,065,946.73 and 42,789,897.66 is: 64,188,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,703,982.66 : 187,065,946.73 = 42,789,897.66 : x
  2. Step 2: Convert to fraction form
    124,703,982.66/187,065,946.73 = 42,789,897.66/x
  3. Step 3: Cross multiply
    124,703,982.66x = 187,065,946.73 × 42,789,897.66
  4. Step 4: Simplify right side
    124,703,982.66x = 8,004,532,716,247,711
  5. Step 5: Solve for x
    x = 8,004,532,716,247,711/124,703,982.66
  6. Step 6: Final answer
    x = 64,188,268.45

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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.