Home / 81,443,899,595.52-112,390,820,292.84-47,151,052,161.28

Finding the Fourth Proportional to 81,443,899,595.52, 112,390,820,292.84 and 47,151,052,161.28

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Solution

The fourth proportional to 81,443,899,595.52, 112,390,820,292.84 and 47,151,052,161.28 is: 65,067,432,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,443,899,595.52 : 112,390,820,292.84 = 47,151,052,161.28 : x
  2. Step 2: Convert to fraction form
    81,443,899,595.52/112,390,820,292.84 = 47,151,052,161.28/x
  3. Step 3: Cross multiply
    81,443,899,595.52x = 112,390,820,292.84 × 47,151,052,161.28
  4. Step 4: Simplify right side
    81,443,899,595.52x = 5,299,345,430,076,520,923,136
  5. Step 5: Solve for x
    x = 5,299,345,430,076,520,923,136/81,443,899,595.52
  6. Step 6: Final answer
    x = 65,067,432,384.68

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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.