Home / 138,029,163.40-206,791,802.70-112,331,038.60

Finding the Fourth Proportional to 138,029,163.40, 206,791,802.70 and 112,331,038.60

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Solution

The fourth proportional to 138,029,163.40, 206,791,802.70 and 112,331,038.60 is: 168,291,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,029,163.40 : 206,791,802.70 = 112,331,038.60 : x
  2. Step 2: Convert to fraction form
    138,029,163.40/206,791,802.70 = 112,331,038.60/x
  3. Step 3: Cross multiply
    138,029,163.40x = 206,791,802.70 × 112,331,038.60
  4. Step 4: Simplify right side
    138,029,163.40x = 23,229,137,971,257,280
  5. Step 5: Solve for x
    x = 23,229,137,971,257,280/138,029,163.40
  6. Step 6: Final answer
    x = 168,291,521.87

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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.