Home / 1,325,509,042.16-1,987,944,698.63-405,393,352.40

Finding the Fourth Proportional to 1,325,509,042.16, 1,987,944,698.63 and 405,393,352.40

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Solution

The fourth proportional to 1,325,509,042.16, 1,987,944,698.63 and 405,393,352.40 is: 607,992,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,509,042.16 : 1,987,944,698.63 = 405,393,352.40 : x
  2. Step 2: Convert to fraction form
    1,325,509,042.16/1,987,944,698.63 = 405,393,352.40/x
  3. Step 3: Cross multiply
    1,325,509,042.16x = 1,987,944,698.63 × 405,393,352.40
  4. Step 4: Simplify right side
    1,325,509,042.16x = 805,899,565,769,406,592
  5. Step 5: Solve for x
    x = 805,899,565,769,406,592/1,325,509,042.16
  6. Step 6: Final answer
    x = 607,992,507.13

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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.