Home / 139,953,859.16-193,174,740.20-81,235,441.52

Finding the Fourth Proportional to 139,953,859.16, 193,174,740.20 and 81,235,441.52

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Solution

The fourth proportional to 139,953,859.16, 193,174,740.20 and 81,235,441.52 is: 112,127,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,953,859.16 : 193,174,740.20 = 81,235,441.52 : x
  2. Step 2: Convert to fraction form
    139,953,859.16/193,174,740.20 = 81,235,441.52/x
  3. Step 3: Cross multiply
    139,953,859.16x = 193,174,740.20 × 81,235,441.52
  4. Step 4: Simplify right side
    139,953,859.16x = 15,692,635,310,658,292
  5. Step 5: Solve for x
    x = 15,692,635,310,658,292/139,953,859.16
  6. Step 6: Final answer
    x = 112,127,206.82

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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.