Home / 7,905,041.76-10,901,916.72-6,163,140

Finding the Fourth Proportional to 7,905,041.76, 10,901,916.72 and 6,163,140

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Solution

The fourth proportional to 7,905,041.76, 10,901,916.72 and 6,163,140 is: 8,499,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905,041.76 : 10,901,916.72 = 6,163,140 : x
  2. Step 2: Convert to fraction form
    7,905,041.76/10,901,916.72 = 6,163,140/x
  3. Step 3: Cross multiply
    7,905,041.76x = 10,901,916.72 × 6,163,140
  4. Step 4: Simplify right side
    7,905,041.76x = 67,190,039,013,700.80
  5. Step 5: Solve for x
    x = 67,190,039,013,700.80/7,905,041.76
  6. Step 6: Final answer
    x = 8,499,643.78

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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.