Home / 140,249,725.24-193,540,908.18-78,370,572.28

Finding the Fourth Proportional to 140,249,725.24, 193,540,908.18 and 78,370,572.28

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Solution

The fourth proportional to 140,249,725.24, 193,540,908.18 and 78,370,572.28 is: 108,149,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249,725.24 : 193,540,908.18 = 78,370,572.28 : x
  2. Step 2: Convert to fraction form
    140,249,725.24/193,540,908.18 = 78,370,572.28/x
  3. Step 3: Cross multiply
    140,249,725.24x = 193,540,908.18 × 78,370,572.28
  4. Step 4: Simplify right side
    140,249,725.24x = 15,167,911,733,657,534
  5. Step 5: Solve for x
    x = 15,167,911,733,657,534/140,249,725.24
  6. Step 6: Final answer
    x = 108,149,315.14

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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.