Home / 130,681,285.20-196,021,927.80-128,413,803.60

Finding the Fourth Proportional to 130,681,285.20, 196,021,927.80 and 128,413,803.60

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Solution

The fourth proportional to 130,681,285.20, 196,021,927.80 and 128,413,803.60 is: 192,620,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,681,285.20 : 196,021,927.80 = 128,413,803.60 : x
  2. Step 2: Convert to fraction form
    130,681,285.20/196,021,927.80 = 128,413,803.60/x
  3. Step 3: Cross multiply
    130,681,285.20x = 196,021,927.80 × 128,413,803.60
  4. Step 4: Simplify right side
    130,681,285.20x = 25,171,921,337,802,580
  5. Step 5: Solve for x
    x = 25,171,921,337,802,580/130,681,285.20
  6. Step 6: Final answer
    x = 192,620,705.40

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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.