Home / 132,078,806.40-198,118,209.60-83,611,387.20

Finding the Fourth Proportional to 132,078,806.40, 198,118,209.60 and 83,611,387.20

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Solution

The fourth proportional to 132,078,806.40, 198,118,209.60 and 83,611,387.20 is: 125,417,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,078,806.40 : 198,118,209.60 = 83,611,387.20 : x
  2. Step 2: Convert to fraction form
    132,078,806.40/198,118,209.60 = 83,611,387.20/x
  3. Step 3: Cross multiply
    132,078,806.40x = 198,118,209.60 × 83,611,387.20
  4. Step 4: Simplify right side
    132,078,806.40x = 16,564,938,334,236,358
  5. Step 5: Solve for x
    x = 16,564,938,334,236,358/132,078,806.40
  6. Step 6: Final answer
    x = 125,417,080.80

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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.