Home / 649,981,308.02-896,975,943.64-352,623,550.20

Finding the Fourth Proportional to 649,981,308.02, 896,975,943.64 and 352,623,550.20

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Solution

The fourth proportional to 649,981,308.02, 896,975,943.64 and 352,623,550.20 is: 486,621,442.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,981,308.02 : 896,975,943.64 = 352,623,550.20 : x
  2. Step 2: Convert to fraction form
    649,981,308.02/896,975,943.64 = 352,623,550.20/x
  3. Step 3: Cross multiply
    649,981,308.02x = 896,975,943.64 × 352,623,550.20
  4. Step 4: Simplify right side
    649,981,308.02x = 316,294,841,690,331,904
  5. Step 5: Solve for x
    x = 316,294,841,690,331,904/649,981,308.02
  6. Step 6: Final answer
    x = 486,621,442.47

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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.