Home / 354,347,959.23-489,001,535.60-197,721,667.71

Finding the Fourth Proportional to 354,347,959.23, 489,001,535.60 and 197,721,667.71

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Solution

The fourth proportional to 354,347,959.23, 489,001,535.60 and 197,721,667.71 is: 272,856,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,347,959.23 : 489,001,535.60 = 197,721,667.71 : x
  2. Step 2: Convert to fraction form
    354,347,959.23/489,001,535.60 = 197,721,667.71/x
  3. Step 3: Cross multiply
    354,347,959.23x = 489,001,535.60 × 197,721,667.71
  4. Step 4: Simplify right side
    354,347,959.23x = 96,686,199,130,594,336
  5. Step 5: Solve for x
    x = 96,686,199,130,594,336/354,347,959.23
  6. Step 6: Final answer
    x = 272,856,655.76

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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.