Home / 34,138,979.61-47,115,442.84-20,916,931.23

Finding the Fourth Proportional to 34,138,979.61, 47,115,442.84 and 20,916,931.23

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Solution

The fourth proportional to 34,138,979.61, 47,115,442.84 and 20,916,931.23 is: 28,867,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138,979.61 : 47,115,442.84 = 20,916,931.23 : x
  2. Step 2: Convert to fraction form
    34,138,979.61/47,115,442.84 = 20,916,931.23/x
  3. Step 3: Cross multiply
    34,138,979.61x = 47,115,442.84 × 20,916,931.23
  4. Step 4: Simplify right side
    34,138,979.61x = 985,510,477,781,422.12
  5. Step 5: Solve for x
    x = 985,510,477,781,422.12/34,138,979.61
  6. Step 6: Final answer
    x = 28,867,602.05

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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.