Home / 139,712,510.43-192,804,554.60-76,990,851.76

Finding the Fourth Proportional to 139,712,510.43, 192,804,554.60 and 76,990,851.76

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Solution

The fourth proportional to 139,712,510.43, 192,804,554.60 and 76,990,851.76 is: 106,248,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,712,510.43 : 192,804,554.60 = 76,990,851.76 : x
  2. Step 2: Convert to fraction form
    139,712,510.43/192,804,554.60 = 76,990,851.76/x
  3. Step 3: Cross multiply
    139,712,510.43x = 192,804,554.60 × 76,990,851.76
  4. Step 4: Simplify right side
    139,712,510.43x = 14,844,186,881,861,426
  5. Step 5: Solve for x
    x = 14,844,186,881,861,426/139,712,510.43
  6. Step 6: Final answer
    x = 106,248,086.42

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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.