Home / 826,532,644.32-1,140,614,946.81-455,254,675.74

Finding the Fourth Proportional to 826,532,644.32, 1,140,614,946.81 and 455,254,675.74

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Solution

The fourth proportional to 826,532,644.32, 1,140,614,946.81 and 455,254,675.74 is: 628,251,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,532,644.32 : 1,140,614,946.81 = 455,254,675.74 : x
  2. Step 2: Convert to fraction form
    826,532,644.32/1,140,614,946.81 = 455,254,675.74/x
  3. Step 3: Cross multiply
    826,532,644.32x = 1,140,614,946.81 × 455,254,675.74
  4. Step 4: Simplify right side
    826,532,644.32x = 519,270,287,754,183,872
  5. Step 5: Solve for x
    x = 519,270,287,754,183,872/826,532,644.32
  6. Step 6: Final answer
    x = 628,251,396.15

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1.5x scale

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.