Home / 223,657,001.28-308,643,718.78-123,183,509.10

Finding the Fourth Proportional to 223,657,001.28, 308,643,718.78 and 123,183,509.10

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Solution

The fourth proportional to 223,657,001.28, 308,643,718.78 and 123,183,509.10 is: 169,991,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,657,001.28 : 308,643,718.78 = 123,183,509.10 : x
  2. Step 2: Convert to fraction form
    223,657,001.28/308,643,718.78 = 123,183,509.10/x
  3. Step 3: Cross multiply
    223,657,001.28x = 308,643,718.78 × 123,183,509.10
  4. Step 4: Simplify right side
    223,657,001.28x = 38,019,816,339,990,536
  5. Step 5: Solve for x
    x = 38,019,816,339,990,536/223,657,001.28
  6. Step 6: Final answer
    x = 169,991,621.65

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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.