Home / 70,473,997,135.20-105,710,995,702.80-39,128,331,496.80

Finding the Fourth Proportional to 70,473,997,135.20, 105,710,995,702.80 and 39,128,331,496.80

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Solution

The fourth proportional to 70,473,997,135.20, 105,710,995,702.80 and 39,128,331,496.80 is: 58,692,497,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,473,997,135.20 : 105,710,995,702.80 = 39,128,331,496.80 : x
  2. Step 2: Convert to fraction form
    70,473,997,135.20/105,710,995,702.80 = 39,128,331,496.80/x
  3. Step 3: Cross multiply
    70,473,997,135.20x = 105,710,995,702.80 × 39,128,331,496.80
  4. Step 4: Simplify right side
    70,473,997,135.20x = 4,136,294,882,715,959,296,000
  5. Step 5: Solve for x
    x = 4,136,294,882,715,959,296,000/70,473,997,135.20
  6. Step 6: Final answer
    x = 58,692,497,245.20

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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.