Home / 100,525,993.76-138,717,696.48-56,470,599.20

Finding the Fourth Proportional to 100,525,993.76, 138,717,696.48 and 56,470,599.20

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Solution

The fourth proportional to 100,525,993.76, 138,717,696.48 and 56,470,599.20 is: 77,924,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,525,993.76 : 138,717,696.48 = 56,470,599.20 : x
  2. Step 2: Convert to fraction form
    100,525,993.76/138,717,696.48 = 56,470,599.20/x
  3. Step 3: Cross multiply
    100,525,993.76x = 138,717,696.48 × 56,470,599.20
  4. Step 4: Simplify right side
    100,525,993.76x = 7,833,471,439,869,331
  5. Step 5: Solve for x
    x = 7,833,471,439,869,331/100,525,993.76
  6. Step 6: Final answer
    x = 77,924,834.63

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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.