Home / 908,553,146.20-1,253,804,228.80-490,865,763.64

Finding the Fourth Proportional to 908,553,146.20, 1,253,804,228.80 and 490,865,763.64

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Solution

The fourth proportional to 908,553,146.20, 1,253,804,228.80 and 490,865,763.64 is: 677,395,233.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,553,146.20 : 1,253,804,228.80 = 490,865,763.64 : x
  2. Step 2: Convert to fraction form
    908,553,146.20/1,253,804,228.80 = 490,865,763.64/x
  3. Step 3: Cross multiply
    908,553,146.20x = 1,253,804,228.80 × 490,865,763.64
  4. Step 4: Simplify right side
    908,553,146.20x = 615,449,570,224,973,184
  5. Step 5: Solve for x
    x = 615,449,570,224,973,184/908,553,146.20
  6. Step 6: Final answer
    x = 677,395,233.07

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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.