Home / 513,124,584.73-708,084,654.78-290,092,931.71

Finding the Fourth Proportional to 513,124,584.73, 708,084,654.78 and 290,092,931.71

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Solution

The fourth proportional to 513,124,584.73, 708,084,654.78 and 290,092,931.71 is: 400,312,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,124,584.73 : 708,084,654.78 = 290,092,931.71 : x
  2. Step 2: Convert to fraction form
    513,124,584.73/708,084,654.78 = 290,092,931.71/x
  3. Step 3: Cross multiply
    513,124,584.73x = 708,084,654.78 × 290,092,931.71
  4. Step 4: Simplify right side
    513,124,584.73x = 205,410,353,403,993,440
  5. Step 5: Solve for x
    x = 205,410,353,403,993,440/513,124,584.73
  6. Step 6: Final answer
    x = 400,312,827.56

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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.