Home / 1,490,170,381.10-2,056,342,468.20-821,077,982.88

Finding the Fourth Proportional to 1,490,170,381.10, 2,056,342,468.20 and 821,077,982.88

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Solution

The fourth proportional to 1,490,170,381.10, 2,056,342,468.20 and 821,077,982.88 is: 1,133,036,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,170,381.10 : 2,056,342,468.20 = 821,077,982.88 : x
  2. Step 2: Convert to fraction form
    1,490,170,381.10/2,056,342,468.20 = 821,077,982.88/x
  3. Step 3: Cross multiply
    1,490,170,381.10x = 2,056,342,468.20 × 821,077,982.88
  4. Step 4: Simplify right side
    1,490,170,381.10x = 1,688,417,525,896,202,240
  5. Step 5: Solve for x
    x = 1,688,417,525,896,202,240/1,490,170,381.10
  6. Step 6: Final answer
    x = 1,133,036,562.33

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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.