Home / 177,379,807.60-266,069,711.40-128,628,953.20

Finding the Fourth Proportional to 177,379,807.60, 266,069,711.40 and 128,628,953.20

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Solution

The fourth proportional to 177,379,807.60, 266,069,711.40 and 128,628,953.20 is: 192,943,429.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,379,807.60 : 266,069,711.40 = 128,628,953.20 : x
  2. Step 2: Convert to fraction form
    177,379,807.60/266,069,711.40 = 128,628,953.20/x
  3. Step 3: Cross multiply
    177,379,807.60x = 266,069,711.40 × 128,628,953.20
  4. Step 4: Simplify right side
    177,379,807.60x = 34,224,268,455,608,108
  5. Step 5: Solve for x
    x = 34,224,268,455,608,108/177,379,807.60
  6. Step 6: Final answer
    x = 192,943,429.80

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1.5x scale

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.