Home / 920,496,693.01-1,270,285,387.76-497,110,313.48

Finding the Fourth Proportional to 920,496,693.01, 1,270,285,387.76 and 497,110,313.48

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Solution

The fourth proportional to 920,496,693.01, 1,270,285,387.76 and 497,110,313.48 is: 686,012,206.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,496,693.01 : 1,270,285,387.76 = 497,110,313.48 : x
  2. Step 2: Convert to fraction form
    920,496,693.01/1,270,285,387.76 = 497,110,313.48/x
  3. Step 3: Cross multiply
    920,496,693.01x = 1,270,285,387.76 × 497,110,313.48
  4. Step 4: Simplify right side
    920,496,693.01x = 631,471,967,313,328,384
  5. Step 5: Solve for x
    x = 631,471,967,313,328,384/920,496,693.01
  6. Step 6: Final answer
    x = 686,012,206.36

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1.5x scale

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.