Home / 687,750,820.10-949,092,089.16-374,484,284

Finding the Fourth Proportional to 687,750,820.10, 949,092,089.16 and 374,484,284

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Solution

The fourth proportional to 687,750,820.10, 949,092,089.16 and 374,484,284 is: 516,786,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,750,820.10 : 949,092,089.16 = 374,484,284 : x
  2. Step 2: Convert to fraction form
    687,750,820.10/949,092,089.16 = 374,484,284/x
  3. Step 3: Cross multiply
    687,750,820.10x = 949,092,089.16 × 374,484,284
  4. Step 4: Simplify right side
    687,750,820.10x = 355,420,071,459,146,752
  5. Step 5: Solve for x
    x = 355,420,071,459,146,752/687,750,820.10
  6. Step 6: Final answer
    x = 516,786,110.71

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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.