Home / 649,319,473.69-896,036,858.78-351,955,331.30

Finding the Fourth Proportional to 649,319,473.69, 896,036,858.78 and 351,955,331.30

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Solution

The fourth proportional to 649,319,473.69, 896,036,858.78 and 351,955,331.30 is: 485,685,340.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,319,473.69 : 896,036,858.78 = 351,955,331.30 : x
  2. Step 2: Convert to fraction form
    649,319,473.69/896,036,858.78 = 351,955,331.30/x
  3. Step 3: Cross multiply
    649,319,473.69x = 896,036,858.78 × 351,955,331.30
  4. Step 4: Simplify right side
    649,319,473.69x = 315,364,949,489,406,528
  5. Step 5: Solve for x
    x = 315,364,949,489,406,528/649,319,473.69
  6. Step 6: Final answer
    x = 485,685,340.22

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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.