Home / 556,125,851.68-767,471,292.48-321,172,242.72

Finding the Fourth Proportional to 556,125,851.68, 767,471,292.48 and 321,172,242.72

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Solution

The fourth proportional to 556,125,851.68, 767,471,292.48 and 321,172,242.72 is: 443,227,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,125,851.68 : 767,471,292.48 = 321,172,242.72 : x
  2. Step 2: Convert to fraction form
    556,125,851.68/767,471,292.48 = 321,172,242.72/x
  3. Step 3: Cross multiply
    556,125,851.68x = 767,471,292.48 × 321,172,242.72
  4. Step 4: Simplify right side
    556,125,851.68x = 246,490,476,229,018,688
  5. Step 5: Solve for x
    x = 246,490,476,229,018,688/556,125,851.68
  6. Step 6: Final answer
    x = 443,227,869.17

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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.