Home / 286,249,722.60-395,041,490.70-215,560,616.88

Finding the Fourth Proportional to 286,249,722.60, 395,041,490.70 and 215,560,616.88

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Solution

The fourth proportional to 286,249,722.60, 395,041,490.70 and 215,560,616.88 is: 297,486,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,249,722.60 : 395,041,490.70 = 215,560,616.88 : x
  2. Step 2: Convert to fraction form
    286,249,722.60/395,041,490.70 = 215,560,616.88/x
  3. Step 3: Cross multiply
    286,249,722.60x = 395,041,490.70 × 215,560,616.88
  4. Step 4: Simplify right side
    286,249,722.60x = 85,155,387,428,486,784
  5. Step 5: Solve for x
    x = 85,155,387,428,486,784/286,249,722.60
  6. Step 6: Final answer
    x = 297,486,357.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.