Home / 920,496,695.76-1,270,285,391.56-497,110,316.23

Finding the Fourth Proportional to 920,496,695.76, 1,270,285,391.56 and 497,110,316.23

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Solution

The fourth proportional to 920,496,695.76, 1,270,285,391.56 and 497,110,316.23 is: 686,012,210.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,496,695.76 : 1,270,285,391.56 = 497,110,316.23 : x
  2. Step 2: Convert to fraction form
    920,496,695.76/1,270,285,391.56 = 497,110,316.23/x
  3. Step 3: Cross multiply
    920,496,695.76x = 1,270,285,391.56 × 497,110,316.23
  4. Step 4: Simplify right side
    920,496,695.76x = 631,471,972,700,740,992
  5. Step 5: Solve for x
    x = 631,471,972,700,740,992/920,496,695.76
  6. Step 6: Final answer
    x = 686,012,210.16

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Double scale
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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.