Home / 14,615,987,947.64-20,170,078,295.40-7,932,985,890.20

Finding the Fourth Proportional to 14,615,987,947.64, 20,170,078,295.40 and 7,932,985,890.20

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Solution

The fourth proportional to 14,615,987,947.64, 20,170,078,295.40 and 7,932,985,890.20 is: 10,947,528,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615,987,947.64 : 20,170,078,295.40 = 7,932,985,890.20 : x
  2. Step 2: Convert to fraction form
    14,615,987,947.64/20,170,078,295.40 = 7,932,985,890.20/x
  3. Step 3: Cross multiply
    14,615,987,947.64x = 20,170,078,295.40 × 7,932,985,890.20
  4. Step 4: Simplify right side
    14,615,987,947.64x = 160,008,946,521,637,486,592
  5. Step 5: Solve for x
    x = 160,008,946,521,637,486,592/14,615,987,947.64
  6. Step 6: Final answer
    x = 10,947,528,630.62

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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.