Home / 72,839,239.83-109,336,638.35-31,360,657.29

Finding the Fourth Proportional to 72,839,239.83, 109,336,638.35 and 31,360,657.29

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Solution

The fourth proportional to 72,839,239.83, 109,336,638.35 and 31,360,657.29 is: 47,074,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,839,239.83 : 109,336,638.35 = 31,360,657.29 : x
  2. Step 2: Convert to fraction form
    72,839,239.83/109,336,638.35 = 31,360,657.29/x
  3. Step 3: Cross multiply
    72,839,239.83x = 109,336,638.35 × 31,360,657.29
  4. Step 4: Simplify right side
    72,839,239.83x = 3,428,868,844,495,820
  5. Step 5: Solve for x
    x = 3,428,868,844,495,820/72,839,239.83
  6. Step 6: Final answer
    x = 47,074,473.22

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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.