Home / 72,791,564,147.60-109,187,346,221.40-28,627,069,197.20

Finding the Fourth Proportional to 72,791,564,147.60, 109,187,346,221.40 and 28,627,069,197.20

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Solution

The fourth proportional to 72,791,564,147.60, 109,187,346,221.40 and 28,627,069,197.20 is: 42,940,603,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,791,564,147.60 : 109,187,346,221.40 = 28,627,069,197.20 : x
  2. Step 2: Convert to fraction form
    72,791,564,147.60/109,187,346,221.40 = 28,627,069,197.20/x
  3. Step 3: Cross multiply
    72,791,564,147.60x = 109,187,346,221.40 × 28,627,069,197.20
  4. Step 4: Simplify right side
    72,791,564,147.60x = 3,125,713,715,738,651,918,336
  5. Step 5: Solve for x
    x = 3,125,713,715,738,651,918,336/72,791,564,147.60
  6. Step 6: Final answer
    x = 42,940,603,795.80

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1.5x scale

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.