Home / 370,991,669.40-556,487,504.10-128,654,573.40

Finding the Fourth Proportional to 370,991,669.40, 556,487,504.10 and 128,654,573.40

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Solution

The fourth proportional to 370,991,669.40, 556,487,504.10 and 128,654,573.40 is: 192,981,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,991,669.40 : 556,487,504.10 = 128,654,573.40 : x
  2. Step 2: Convert to fraction form
    370,991,669.40/556,487,504.10 = 128,654,573.40/x
  3. Step 3: Cross multiply
    370,991,669.40x = 556,487,504.10 × 128,654,573.40
  4. Step 4: Simplify right side
    370,991,669.40x = 71,594,662,442,416,256
  5. Step 5: Solve for x
    x = 71,594,662,442,416,256/370,991,669.40
  6. Step 6: Final answer
    x = 192,981,860.10

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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.