Home / 920,496,694.89-1,270,285,390.35-497,110,315.35

Finding the Fourth Proportional to 920,496,694.89, 1,270,285,390.35 and 497,110,315.35

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Solution

The fourth proportional to 920,496,694.89, 1,270,285,390.35 and 497,110,315.35 is: 686,012,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,496,694.89 : 1,270,285,390.35 = 497,110,315.35 : x
  2. Step 2: Convert to fraction form
    920,496,694.89/1,270,285,390.35 = 497,110,315.35/x
  3. Step 3: Cross multiply
    920,496,694.89x = 1,270,285,390.35 × 497,110,315.35
  4. Step 4: Simplify right side
    920,496,694.89x = 631,471,970,981,386,368
  5. Step 5: Solve for x
    x = 631,471,970,981,386,368/920,496,694.89
  6. Step 6: Final answer
    x = 686,012,208.94

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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.