Home / 7,185,088.79-9,913,942.37-4,128,712.55

Finding the Fourth Proportional to 7,185,088.79, 9,913,942.37 and 4,128,712.55

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Solution

The fourth proportional to 7,185,088.79, 9,913,942.37 and 4,128,712.55 is: 5,696,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185,088.79 : 9,913,942.37 = 4,128,712.55 : x
  2. Step 2: Convert to fraction form
    7,185,088.79/9,913,942.37 = 4,128,712.55/x
  3. Step 3: Cross multiply
    7,185,088.79x = 9,913,942.37 × 4,128,712.55
  4. Step 4: Simplify right side
    7,185,088.79x = 40,931,818,212,782.47
  5. Step 5: Solve for x
    x = 40,931,818,212,782.47/7,185,088.79
  6. Step 6: Final answer
    x = 5,696,772.78

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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.