Home / 217,312,830.40-325,857,271.20-80,928,011.20

Finding the Fourth Proportional to 217,312,830.40, 325,857,271.20 and 80,928,011.20

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Solution

The fourth proportional to 217,312,830.40, 325,857,271.20 and 80,928,011.20 is: 121,350,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,312,830.40 : 325,857,271.20 = 80,928,011.20 : x
  2. Step 2: Convert to fraction form
    217,312,830.40/325,857,271.20 = 80,928,011.20/x
  3. Step 3: Cross multiply
    217,312,830.40x = 325,857,271.20 × 80,928,011.20
  4. Step 4: Simplify right side
    217,312,830.40x = 26,370,980,893,275,036
  5. Step 5: Solve for x
    x = 26,370,980,893,275,036/217,312,830.40
  6. Step 6: Final answer
    x = 121,350,317.17

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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.