Home / 1,137,681,128.55-1,706,521,696.92-319,793,429.55

Finding the Fourth Proportional to 1,137,681,128.55, 1,706,521,696.92 and 319,793,429.55

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Solution

The fourth proportional to 1,137,681,128.55, 1,706,521,696.92 and 319,793,429.55 is: 479,690,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,681,128.55 : 1,706,521,696.92 = 319,793,429.55 : x
  2. Step 2: Convert to fraction form
    1,137,681,128.55/1,706,521,696.92 = 319,793,429.55/x
  3. Step 3: Cross multiply
    1,137,681,128.55x = 1,706,521,696.92 × 319,793,429.55
  4. Step 4: Simplify right side
    1,137,681,128.55x = 545,734,426,059,532,544
  5. Step 5: Solve for x
    x = 545,734,426,059,532,544/1,137,681,128.55
  6. Step 6: Final answer
    x = 479,690,145.48

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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.