Home / 215,808,096.80-323,712,145.20-190,865,799.20

Finding the Fourth Proportional to 215,808,096.80, 323,712,145.20 and 190,865,799.20

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Solution

The fourth proportional to 215,808,096.80, 323,712,145.20 and 190,865,799.20 is: 286,298,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808,096.80 : 323,712,145.20 = 190,865,799.20 : x
  2. Step 2: Convert to fraction form
    215,808,096.80/323,712,145.20 = 190,865,799.20/x
  3. Step 3: Cross multiply
    215,808,096.80x = 323,712,145.20 × 190,865,799.20
  4. Step 4: Simplify right side
    215,808,096.80x = 61,785,577,304,344,440
  5. Step 5: Solve for x
    x = 61,785,577,304,344,440/215,808,096.80
  6. Step 6: Final answer
    x = 286,298,698.80

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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.