Home / 280,164,281.88-386,622,673.14-154,721,785.64

Finding the Fourth Proportional to 280,164,281.88, 386,622,673.14 and 154,721,785.64

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Solution

The fourth proportional to 280,164,281.88, 386,622,673.14 and 154,721,785.64 is: 213,513,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,164,281.88 : 386,622,673.14 = 154,721,785.64 : x
  2. Step 2: Convert to fraction form
    280,164,281.88/386,622,673.14 = 154,721,785.64/x
  3. Step 3: Cross multiply
    280,164,281.88x = 386,622,673.14 × 154,721,785.64
  4. Step 4: Simplify right side
    280,164,281.88x = 59,818,950,357,130,856
  5. Step 5: Solve for x
    x = 59,818,950,357,130,856/280,164,281.88
  6. Step 6: Final answer
    x = 213,513,835.37

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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.