Home / 72,504,055,844.50-100,051,088,818.30-39,949,447,702.72

Finding the Fourth Proportional to 72,504,055,844.50, 100,051,088,818.30 and 39,949,447,702.72

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Solution

The fourth proportional to 72,504,055,844.50, 100,051,088,818.30 and 39,949,447,702.72 is: 55,127,753,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504,055,844.50 : 100,051,088,818.30 = 39,949,447,702.72 : x
  2. Step 2: Convert to fraction form
    72,504,055,844.50/100,051,088,818.30 = 39,949,447,702.72/x
  3. Step 3: Cross multiply
    72,504,055,844.50x = 100,051,088,818.30 × 39,949,447,702.72
  4. Step 4: Simplify right side
    72,504,055,844.50x = 3,996,985,740,346,869,678,080
  5. Step 5: Solve for x
    x = 3,996,985,740,346,869,678,080/72,504,055,844.50
  6. Step 6: Final answer
    x = 55,127,753,803.45

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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.