Home / 15,406,768.32-21,261,307.78-8,880,353.70

Finding the Fourth Proportional to 15,406,768.32, 21,261,307.78 and 8,880,353.70

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Solution

The fourth proportional to 15,406,768.32, 21,261,307.78 and 8,880,353.70 is: 12,254,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,768.32 : 21,261,307.78 = 8,880,353.70 : x
  2. Step 2: Convert to fraction form
    15,406,768.32/21,261,307.78 = 8,880,353.70/x
  3. Step 3: Cross multiply
    15,406,768.32x = 21,261,307.78 × 8,880,353.70
  4. Step 4: Simplify right side
    15,406,768.32x = 188,807,933,210,961.78
  5. Step 5: Solve for x
    x = 188,807,933,210,961.78/15,406,768.32
  6. Step 6: Final answer
    x = 12,254,869.37

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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.