Home / 220,879,460.80-331,316,080.80-99,710,718.40

Finding the Fourth Proportional to 220,879,460.80, 331,316,080.80 and 99,710,718.40

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Solution

The fourth proportional to 220,879,460.80, 331,316,080.80 and 99,710,718.40 is: 149,564,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,879,460.80 : 331,316,080.80 = 99,710,718.40 : x
  2. Step 2: Convert to fraction form
    220,879,460.80/331,316,080.80 = 99,710,718.40/x
  3. Step 3: Cross multiply
    220,879,460.80x = 331,316,080.80 × 99,710,718.40
  4. Step 4: Simplify right side
    220,879,460.80x = 33,035,764,434,040,448
  5. Step 5: Solve for x
    x = 33,035,764,434,040,448/220,879,460.80
  6. Step 6: Final answer
    x = 149,564,673.48

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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.