Home / 247,063,691,282.52-340,929,182,809.74-138,655,851,478.49

Finding the Fourth Proportional to 247,063,691,282.52, 340,929,182,809.74 and 138,655,851,478.49

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Solution

The fourth proportional to 247,063,691,282.52, 340,929,182,809.74 and 138,655,851,478.49 is: 191,334,574,056.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,063,691,282.52 : 340,929,182,809.74 = 138,655,851,478.49 : x
  2. Step 2: Convert to fraction form
    247,063,691,282.52/340,929,182,809.74 = 138,655,851,478.49/x
  3. Step 3: Cross multiply
    247,063,691,282.52x = 340,929,182,809.74 × 138,655,851,478.49
  4. Step 4: Simplify right side
    247,063,691,282.52x = 47,271,826,136,350,268,063,744
  5. Step 5: Solve for x
    x = 47,271,826,136,350,268,063,744/247,063,691,282.52
  6. Step 6: Final answer
    x = 191,334,574,056.43

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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.