Home / 7,148,942,675.75-9,865,630,146.80-3,934,222,520.91

Finding the Fourth Proportional to 7,148,942,675.75, 9,865,630,146.80 and 3,934,222,520.91

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Solution

The fourth proportional to 7,148,942,675.75, 9,865,630,146.80 and 3,934,222,520.91 is: 5,429,276,197.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,942,675.75 : 9,865,630,146.80 = 3,934,222,520.91 : x
  2. Step 2: Convert to fraction form
    7,148,942,675.75/9,865,630,146.80 = 3,934,222,520.91/x
  3. Step 3: Cross multiply
    7,148,942,675.75x = 9,865,630,146.80 × 3,934,222,520.91
  4. Step 4: Simplify right side
    7,148,942,675.75x = 38,813,584,306,459,115,520
  5. Step 5: Solve for x
    x = 38,813,584,306,459,115,520/7,148,942,675.75
  6. Step 6: Final answer
    x = 5,429,276,197.46

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Double scale
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1.5x scale

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.