Home / 315,046,036.54-472,565,253.47-81,856,114.52

Finding the Fourth Proportional to 315,046,036.54, 472,565,253.47 and 81,856,114.52

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Solution

The fourth proportional to 315,046,036.54, 472,565,253.47 and 81,856,114.52 is: 122,783,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,046,036.54 : 472,565,253.47 = 81,856,114.52 : x
  2. Step 2: Convert to fraction form
    315,046,036.54/472,565,253.47 = 81,856,114.52/x
  3. Step 3: Cross multiply
    315,046,036.54x = 472,565,253.47 × 81,856,114.52
  4. Step 4: Simplify right side
    315,046,036.54x = 38,682,355,506,213,144
  5. Step 5: Solve for x
    x = 38,682,355,506,213,144/315,046,036.54
  6. Step 6: Final answer
    x = 122,783,184.11

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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.