Home / 167,501,485.80-251,252,228.70-128,759,436.90

Finding the Fourth Proportional to 167,501,485.80, 251,252,228.70 and 128,759,436.90

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Solution

The fourth proportional to 167,501,485.80, 251,252,228.70 and 128,759,436.90 is: 193,139,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,501,485.80 : 251,252,228.70 = 128,759,436.90 : x
  2. Step 2: Convert to fraction form
    167,501,485.80/251,252,228.70 = 128,759,436.90/x
  3. Step 3: Cross multiply
    167,501,485.80x = 251,252,228.70 × 128,759,436.90
  4. Step 4: Simplify right side
    167,501,485.80x = 32,351,095,487,282,020
  5. Step 5: Solve for x
    x = 32,351,095,487,282,020/167,501,485.80
  6. Step 6: Final answer
    x = 193,139,155.35

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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.