Home / 124,421,138.40-186,631,707.60-38,172,856.80

Finding the Fourth Proportional to 124,421,138.40, 186,631,707.60 and 38,172,856.80

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Solution

The fourth proportional to 124,421,138.40, 186,631,707.60 and 38,172,856.80 is: 57,259,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,421,138.40 : 186,631,707.60 = 38,172,856.80 : x
  2. Step 2: Convert to fraction form
    124,421,138.40/186,631,707.60 = 38,172,856.80/x
  3. Step 3: Cross multiply
    124,421,138.40x = 186,631,707.60 × 38,172,856.80
  4. Step 4: Simplify right side
    124,421,138.40x = 7,124,265,448,554,271
  5. Step 5: Solve for x
    x = 7,124,265,448,554,271/124,421,138.40
  6. Step 6: Final answer
    x = 57,259,285.20

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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.