Home / 90,803,753.32-125,311,845-49,553,307.76

Finding the Fourth Proportional to 90,803,753.32, 125,311,845 and 49,553,307.76

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Solution

The fourth proportional to 90,803,753.32, 125,311,845 and 49,553,307.76 is: 68,385,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,803,753.32 : 125,311,845 = 49,553,307.76 : x
  2. Step 2: Convert to fraction form
    90,803,753.32/125,311,845 = 49,553,307.76/x
  3. Step 3: Cross multiply
    90,803,753.32x = 125,311,845 × 49,553,307.76
  4. Step 4: Simplify right side
    90,803,753.32x = 6,209,616,421,258,417
  5. Step 5: Solve for x
    x = 6,209,616,421,258,417/90,803,753.32
  6. Step 6: Final answer
    x = 68,385,019.28

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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.