Home / 90,681,038.28-125,141,076.24-49,427,841.96

Finding the Fourth Proportional to 90,681,038.28, 125,141,076.24 and 49,427,841.96

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Solution

The fourth proportional to 90,681,038.28, 125,141,076.24 and 49,427,841.96 is: 68,211,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681,038.28 : 125,141,076.24 = 49,427,841.96 : x
  2. Step 2: Convert to fraction form
    90,681,038.28/125,141,076.24 = 49,427,841.96/x
  3. Step 3: Cross multiply
    90,681,038.28x = 125,141,076.24 × 49,427,841.96
  4. Step 4: Simplify right side
    90,681,038.28x = 6,185,453,339,095,031
  5. Step 5: Solve for x
    x = 6,185,453,339,095,031/90,681,038.28
  6. Step 6: Final answer
    x = 68,211,099.66

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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.