Home / 28,006,113,867.92-38,648,553,580.56-15,145,753,826.72

Finding the Fourth Proportional to 28,006,113,867.92, 38,648,553,580.56 and 15,145,753,826.72

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Solution

The fourth proportional to 28,006,113,867.92, 38,648,553,580.56 and 15,145,753,826.72 is: 20,901,203,253.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,113,867.92 : 38,648,553,580.56 = 15,145,753,826.72 : x
  2. Step 2: Convert to fraction form
    28,006,113,867.92/38,648,553,580.56 = 15,145,753,826.72/x
  3. Step 3: Cross multiply
    28,006,113,867.92x = 38,648,553,580.56 × 15,145,753,826.72
  4. Step 4: Simplify right side
    28,006,113,867.92x = 585,361,478,289,959,485,440
  5. Step 5: Solve for x
    x = 585,361,478,289,959,485,440/28,006,113,867.92
  6. Step 6: Final answer
    x = 20,901,203,253.35

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1.5x scale

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.