Home / 145,866,142.32-201,292,907.88-79,786,062.56

Finding the Fourth Proportional to 145,866,142.32, 201,292,907.88 and 79,786,062.56

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Solution

The fourth proportional to 145,866,142.32, 201,292,907.88 and 79,786,062.56 is: 110,103,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,866,142.32 : 201,292,907.88 = 79,786,062.56 : x
  2. Step 2: Convert to fraction form
    145,866,142.32/201,292,907.88 = 79,786,062.56/x
  3. Step 3: Cross multiply
    145,866,142.32x = 201,292,907.88 × 79,786,062.56
  4. Step 4: Simplify right side
    145,866,142.32x = 16,060,368,540,997,998
  5. Step 5: Solve for x
    x = 16,060,368,540,997,998/145,866,142.32
  6. Step 6: Final answer
    x = 110,103,470.80

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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.