Home / 566,139,013.44-781,296,976.80-318,636,398.40

Finding the Fourth Proportional to 566,139,013.44, 781,296,976.80 and 318,636,398.40

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Solution

The fourth proportional to 566,139,013.44, 781,296,976.80 and 318,636,398.40 is: 439,732,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,139,013.44 : 781,296,976.80 = 318,636,398.40 : x
  2. Step 2: Convert to fraction form
    566,139,013.44/781,296,976.80 = 318,636,398.40/x
  3. Step 3: Cross multiply
    566,139,013.44x = 781,296,976.80 × 318,636,398.40
  4. Step 4: Simplify right side
    566,139,013.44x = 248,949,654,768,360,320
  5. Step 5: Solve for x
    x = 248,949,654,768,360,320/566,139,013.44
  6. Step 6: Final answer
    x = 439,732,378.19

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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.