Home / 412,033,498.80-618,050,248.20-139,404,265.80

Finding the Fourth Proportional to 412,033,498.80, 618,050,248.20 and 139,404,265.80

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Solution

The fourth proportional to 412,033,498.80, 618,050,248.20 and 139,404,265.80 is: 209,106,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,033,498.80 : 618,050,248.20 = 139,404,265.80 : x
  2. Step 2: Convert to fraction form
    412,033,498.80/618,050,248.20 = 139,404,265.80/x
  3. Step 3: Cross multiply
    412,033,498.80x = 618,050,248.20 × 139,404,265.80
  4. Step 4: Simplify right side
    412,033,498.80x = 86,158,841,077,828,784
  5. Step 5: Solve for x
    x = 86,158,841,077,828,784/412,033,498.80
  6. Step 6: Final answer
    x = 209,106,398.70

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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.