Home / 355,066,117.95-490,006,376.52-198,433,223.52

Finding the Fourth Proportional to 355,066,117.95, 490,006,376.52 and 198,433,223.52

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Solution

The fourth proportional to 355,066,117.95, 490,006,376.52 and 198,433,223.52 is: 273,846,306.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,066,117.95 : 490,006,376.52 = 198,433,223.52 : x
  2. Step 2: Convert to fraction form
    355,066,117.95/490,006,376.52 = 198,433,223.52/x
  3. Step 3: Cross multiply
    355,066,117.95x = 490,006,376.52 × 198,433,223.52
  4. Step 4: Simplify right side
    355,066,117.95x = 97,233,544,838,218,448
  5. Step 5: Solve for x
    x = 97,233,544,838,218,448/355,066,117.95
  6. Step 6: Final answer
    x = 273,846,306.15

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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.