Home / 554,498,358,159.95-765,207,153,910.05-310,629,543,648.38

Finding the Fourth Proportional to 554,498,358,159.95, 765,207,153,910.05 and 310,629,543,648.38

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Solution

The fourth proportional to 554,498,358,159.95, 765,207,153,910.05 and 310,629,543,648.38 is: 428,668,445,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,498,358,159.95 : 765,207,153,910.05 = 310,629,543,648.38 : x
  2. Step 2: Convert to fraction form
    554,498,358,159.95/765,207,153,910.05 = 310,629,543,648.38/x
  3. Step 3: Cross multiply
    554,498,358,159.95x = 765,207,153,910.05 × 310,629,543,648.38
  4. Step 4: Simplify right side
    554,498,358,159.95x = 237,695,949,015,554,518,417,408
  5. Step 5: Solve for x
    x = 237,695,949,015,554,518,417,408/554,498,358,159.95
  6. Step 6: Final answer
    x = 428,668,445,122.77

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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.