Home / 140,273,495.19-193,583,401.65-78,393,831.93

Finding the Fourth Proportional to 140,273,495.19, 193,583,401.65 and 78,393,831.93

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Solution

The fourth proportional to 140,273,495.19, 193,583,401.65 and 78,393,831.93 is: 108,186,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,495.19 : 193,583,401.65 = 78,393,831.93 : x
  2. Step 2: Convert to fraction form
    140,273,495.19/193,583,401.65 = 78,393,831.93/x
  3. Step 3: Cross multiply
    140,273,495.19x = 193,583,401.65 × 78,393,831.93
  4. Step 4: Simplify right side
    140,273,495.19x = 15,175,744,653,387,786
  5. Step 5: Solve for x
    x = 15,175,744,653,387,786/140,273,495.19
  6. Step 6: Final answer
    x = 108,186,829.11

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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.