Home / 691,995,042.47-954,955,689.50-374,455,291.23

Finding the Fourth Proportional to 691,995,042.47, 954,955,689.50 and 374,455,291.23

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Solution

The fourth proportional to 691,995,042.47, 954,955,689.50 and 374,455,291.23 is: 516,749,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,995,042.47 : 954,955,689.50 = 374,455,291.23 : x
  2. Step 2: Convert to fraction form
    691,995,042.47/954,955,689.50 = 374,455,291.23/x
  3. Step 3: Cross multiply
    691,995,042.47x = 954,955,689.50 × 374,455,291.23
  4. Step 4: Simplify right side
    691,995,042.47x = 357,588,210,823,467,968
  5. Step 5: Solve for x
    x = 357,588,210,823,467,968/691,995,042.47
  6. Step 6: Final answer
    x = 516,749,671.42

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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.