Home / 819,073,222.51-1,228,602,423.48-258,835,143.61

Finding the Fourth Proportional to 819,073,222.51, 1,228,602,423.48 and 258,835,143.61

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Solution

The fourth proportional to 819,073,222.51, 1,228,602,423.48 and 258,835,143.61 is: 388,250,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,073,222.51 : 1,228,602,423.48 = 258,835,143.61 : x
  2. Step 2: Convert to fraction form
    819,073,222.51/1,228,602,423.48 = 258,835,143.61/x
  3. Step 3: Cross multiply
    819,073,222.51x = 1,228,602,423.48 × 258,835,143.61
  4. Step 4: Simplify right side
    819,073,222.51x = 318,005,484,721,039,872
  5. Step 5: Solve for x
    x = 318,005,484,721,039,872/819,073,222.51
  6. Step 6: Final answer
    x = 388,250,373.69

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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.