Home / 105,178,140.80-157,692,561.60-40,456,937.60

Finding the Fourth Proportional to 105,178,140.80, 157,692,561.60 and 40,456,937.60

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Solution

The fourth proportional to 105,178,140.80, 157,692,561.60 and 40,456,937.60 is: 60,656,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,178,140.80 : 157,692,561.60 = 40,456,937.60 : x
  2. Step 2: Convert to fraction form
    105,178,140.80/157,692,561.60 = 40,456,937.60/x
  3. Step 3: Cross multiply
    105,178,140.80x = 157,692,561.60 × 40,456,937.60
  4. Step 4: Simplify right side
    105,178,140.80x = 6,379,758,124,635,356
  5. Step 5: Solve for x
    x = 6,379,758,124,635,356/105,178,140.80
  6. Step 6: Final answer
    x = 60,656,692.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.