Home / 821,730,383.02-1,133,866,856.40-499,694,064.40

Finding the Fourth Proportional to 821,730,383.02, 1,133,866,856.40 and 499,694,064.40

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Solution

The fourth proportional to 821,730,383.02, 1,133,866,856.40 and 499,694,064.40 is: 689,504,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,730,383.02 : 1,133,866,856.40 = 499,694,064.40 : x
  2. Step 2: Convert to fraction form
    821,730,383.02/1,133,866,856.40 = 499,694,064.40/x
  3. Step 3: Cross multiply
    821,730,383.02x = 1,133,866,856.40 × 499,694,064.40
  4. Step 4: Simplify right side
    821,730,383.02x = 566,586,537,962,967,168
  5. Step 5: Solve for x
    x = 566,586,537,962,967,168/821,730,383.02
  6. Step 6: Final answer
    x = 689,504,184.91

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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.