Home / 7,780,955.40-11,684,555.10-6,500,248.20

Finding the Fourth Proportional to 7,780,955.40, 11,684,555.10 and 6,500,248.20

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Solution

The fourth proportional to 7,780,955.40, 11,684,555.10 and 6,500,248.20 is: 9,761,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780,955.40 : 11,684,555.10 = 6,500,248.20 : x
  2. Step 2: Convert to fraction form
    7,780,955.40/11,684,555.10 = 6,500,248.20/x
  3. Step 3: Cross multiply
    7,780,955.40x = 11,684,555.10 × 6,500,248.20
  4. Step 4: Simplify right side
    7,780,955.40x = 75,952,508,256,575.81
  5. Step 5: Solve for x
    x = 75,952,508,256,575.81/7,780,955.40
  6. Step 6: Final answer
    x = 9,761,334.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.