Home / 140,273,494.93-193,583,401.29-78,393,831.67

Finding the Fourth Proportional to 140,273,494.93, 193,583,401.29 and 78,393,831.67

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Solution

The fourth proportional to 140,273,494.93, 193,583,401.29 and 78,393,831.67 is: 108,186,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,494.93 : 193,583,401.29 = 78,393,831.67 : x
  2. Step 2: Convert to fraction form
    140,273,494.93/193,583,401.29 = 78,393,831.67/x
  3. Step 3: Cross multiply
    140,273,494.93x = 193,583,401.29 × 78,393,831.67
  4. Step 4: Simplify right side
    140,273,494.93x = 15,175,744,574,834,320
  5. Step 5: Solve for x
    x = 15,175,744,574,834,320/140,273,494.93
  6. Step 6: Final answer
    x = 108,186,828.75

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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.