Home / 223,444,819.20-308,349,009-129,362,930.40

Finding the Fourth Proportional to 223,444,819.20, 308,349,009 and 129,362,930.40

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Solution

The fourth proportional to 223,444,819.20, 308,349,009 and 129,362,930.40 is: 178,518,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,444,819.20 : 308,349,009 = 129,362,930.40 : x
  2. Step 2: Convert to fraction form
    223,444,819.20/308,349,009 = 129,362,930.40/x
  3. Step 3: Cross multiply
    223,444,819.20x = 308,349,009 × 129,362,930.40
  4. Step 4: Simplify right side
    223,444,819.20x = 39,888,931,390,175,976
  5. Step 5: Solve for x
    x = 39,888,931,390,175,976/223,444,819.20
  6. Step 6: Final answer
    x = 178,518,040.98

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1.5x scale

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.