Home / 806,955,793.20-1,210,433,689.80-480,438,442.80

Finding the Fourth Proportional to 806,955,793.20, 1,210,433,689.80 and 480,438,442.80

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Solution

The fourth proportional to 806,955,793.20, 1,210,433,689.80 and 480,438,442.80 is: 720,657,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,955,793.20 : 1,210,433,689.80 = 480,438,442.80 : x
  2. Step 2: Convert to fraction form
    806,955,793.20/1,210,433,689.80 = 480,438,442.80/x
  3. Step 3: Cross multiply
    806,955,793.20x = 1,210,433,689.80 × 480,438,442.80
  4. Step 4: Simplify right side
    806,955,793.20x = 581,538,877,040,170,240
  5. Step 5: Solve for x
    x = 581,538,877,040,170,240/806,955,793.20
  6. Step 6: Final answer
    x = 720,657,664.20

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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.