Home / 140,249,688.62-193,540,857.64-78,370,535.66

Finding the Fourth Proportional to 140,249,688.62, 193,540,857.64 and 78,370,535.66

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Solution

The fourth proportional to 140,249,688.62, 193,540,857.64 and 78,370,535.66 is: 108,149,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249,688.62 : 193,540,857.64 = 78,370,535.66 : x
  2. Step 2: Convert to fraction form
    140,249,688.62/193,540,857.64 = 78,370,535.66/x
  3. Step 3: Cross multiply
    140,249,688.62x = 193,540,857.64 × 78,370,535.66
  4. Step 4: Simplify right side
    140,249,688.62x = 15,167,900,684,178,972
  5. Step 5: Solve for x
    x = 15,167,900,684,178,972/140,249,688.62
  6. Step 6: Final answer
    x = 108,149,264.60

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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.