Home / 84,248,420.40-126,372,630.60-70,643,530.80

Finding the Fourth Proportional to 84,248,420.40, 126,372,630.60 and 70,643,530.80

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Solution

The fourth proportional to 84,248,420.40, 126,372,630.60 and 70,643,530.80 is: 105,965,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,420.40 : 126,372,630.60 = 70,643,530.80 : x
  2. Step 2: Convert to fraction form
    84,248,420.40/126,372,630.60 = 70,643,530.80/x
  3. Step 3: Cross multiply
    84,248,420.40x = 126,372,630.60 × 70,643,530.80
  4. Step 4: Simplify right side
    84,248,420.40x = 8,927,408,822,068,122
  5. Step 5: Solve for x
    x = 8,927,408,822,068,122/84,248,420.40
  6. Step 6: Final answer
    x = 105,965,296.20

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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.