Home / 687,750,802.96-949,092,065.52-374,484,266.86

Finding the Fourth Proportional to 687,750,802.96, 949,092,065.52 and 374,484,266.86

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Solution

The fourth proportional to 687,750,802.96, 949,092,065.52 and 374,484,266.86 is: 516,786,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,750,802.96 : 949,092,065.52 = 374,484,266.86 : x
  2. Step 2: Convert to fraction form
    687,750,802.96/949,092,065.52 = 374,484,266.86/x
  3. Step 3: Cross multiply
    687,750,802.96x = 949,092,065.52 × 374,484,266.86
  4. Step 4: Simplify right side
    687,750,802.96x = 355,420,046,338,900,288
  5. Step 5: Solve for x
    x = 355,420,046,338,900,288/687,750,802.96
  6. Step 6: Final answer
    x = 516,786,087.07

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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.