Home / 556,422,920.32-834,637,259.76-326,230,579.84

Finding the Fourth Proportional to 556,422,920.32, 834,637,259.76 and 326,230,579.84

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Solution

The fourth proportional to 556,422,920.32, 834,637,259.76 and 326,230,579.84 is: 489,347,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,422,920.32 : 834,637,259.76 = 326,230,579.84 : x
  2. Step 2: Convert to fraction form
    556,422,920.32/834,637,259.76 = 326,230,579.84/x
  3. Step 3: Cross multiply
    556,422,920.32x = 834,637,259.76 × 326,230,579.84
  4. Step 4: Simplify right side
    556,422,920.32x = 272,284,197,207,573,472
  5. Step 5: Solve for x
    x = 272,284,197,207,573,472/556,422,920.32
  6. Step 6: Final answer
    x = 489,347,557.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.