Home / 134,830,486.96-186,013,128.67-78,305,610.28

Finding the Fourth Proportional to 134,830,486.96, 186,013,128.67 and 78,305,610.28

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Solution

The fourth proportional to 134,830,486.96, 186,013,128.67 and 78,305,610.28 is: 108,030,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,830,486.96 : 186,013,128.67 = 78,305,610.28 : x
  2. Step 2: Convert to fraction form
    134,830,486.96/186,013,128.67 = 78,305,610.28/x
  3. Step 3: Cross multiply
    134,830,486.96x = 186,013,128.67 × 78,305,610.28
  4. Step 4: Simplify right side
    134,830,486.96x = 14,565,871,560,596,514
  5. Step 5: Solve for x
    x = 14,565,871,560,596,514/134,830,486.96
  6. Step 6: Final answer
    x = 108,030,994.24

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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.