Home / 378,435,590.80-567,653,386.20-105,805,920.40

Finding the Fourth Proportional to 378,435,590.80, 567,653,386.20 and 105,805,920.40

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Solution

The fourth proportional to 378,435,590.80, 567,653,386.20 and 105,805,920.40 is: 158,708,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,435,590.80 : 567,653,386.20 = 105,805,920.40 : x
  2. Step 2: Convert to fraction form
    378,435,590.80/567,653,386.20 = 105,805,920.40/x
  3. Step 3: Cross multiply
    378,435,590.80x = 567,653,386.20 × 105,805,920.40
  4. Step 4: Simplify right side
    378,435,590.80x = 60,061,088,995,067,664
  5. Step 5: Solve for x
    x = 60,061,088,995,067,664/378,435,590.80
  6. Step 6: Final answer
    x = 158,708,880.60

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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.