Home / 282,807,785.78-390,216,254.13-165,310,387.92

Finding the Fourth Proportional to 282,807,785.78, 390,216,254.13 and 165,310,387.92

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Solution

The fourth proportional to 282,807,785.78, 390,216,254.13 and 165,310,387.92 is: 228,094,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,807,785.78 : 390,216,254.13 = 165,310,387.92 : x
  2. Step 2: Convert to fraction form
    282,807,785.78/390,216,254.13 = 165,310,387.92/x
  3. Step 3: Cross multiply
    282,807,785.78x = 390,216,254.13 × 165,310,387.92
  4. Step 4: Simplify right side
    282,807,785.78x = 64,506,800,342,919,600
  5. Step 5: Solve for x
    x = 64,506,800,342,919,600/282,807,785.78
  6. Step 6: Final answer
    x = 228,094,145.87

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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.