Home / 390,145,029.60-584,952,123.60-185,771,013.60

Finding the Fourth Proportional to 390,145,029.60, 584,952,123.60 and 185,771,013.60

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Solution

The fourth proportional to 390,145,029.60, 584,952,123.60 and 185,771,013.60 is: 278,530,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,145,029.60 : 584,952,123.60 = 185,771,013.60 : x
  2. Step 2: Convert to fraction form
    390,145,029.60/584,952,123.60 = 185,771,013.60/x
  3. Step 3: Cross multiply
    390,145,029.60x = 584,952,123.60 × 185,771,013.60
  4. Step 4: Simplify right side
    390,145,029.60x = 108,667,148,908,644,480
  5. Step 5: Solve for x
    x = 108,667,148,908,644,480/390,145,029.60
  6. Step 6: Final answer
    x = 278,530,137.93

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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.