Home / 6,438,574,721.20-9,657,862,081.80-5,405,453,417.20

Finding the Fourth Proportional to 6,438,574,721.20, 9,657,862,081.80 and 5,405,453,417.20

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Solution

The fourth proportional to 6,438,574,721.20, 9,657,862,081.80 and 5,405,453,417.20 is: 8,108,180,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,574,721.20 : 9,657,862,081.80 = 5,405,453,417.20 : x
  2. Step 2: Convert to fraction form
    6,438,574,721.20/9,657,862,081.80 = 5,405,453,417.20/x
  3. Step 3: Cross multiply
    6,438,574,721.20x = 9,657,862,081.80 × 5,405,453,417.20
  4. Step 4: Simplify right side
    6,438,574,721.20x = 52,205,123,592,912,109,568
  5. Step 5: Solve for x
    x = 52,205,123,592,912,109,568/6,438,574,721.20
  6. Step 6: Final answer
    x = 8,108,180,125.80

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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.