Home / 664,391,947.30-996,289,322.55-255,312,139.30

Finding the Fourth Proportional to 664,391,947.30, 996,289,322.55 and 255,312,139.30

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Solution

The fourth proportional to 664,391,947.30, 996,289,322.55 and 255,312,139.30 is: 382,853,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,391,947.30 : 996,289,322.55 = 255,312,139.30 : x
  2. Step 2: Convert to fraction form
    664,391,947.30/996,289,322.55 = 255,312,139.30/x
  3. Step 3: Cross multiply
    664,391,947.30x = 996,289,322.55 × 255,312,139.30
  4. Step 4: Simplify right side
    664,391,947.30x = 254,364,758,301,988,224
  5. Step 5: Solve for x
    x = 254,364,758,301,988,224/664,391,947.30
  6. Step 6: Final answer
    x = 382,853,463.74

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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.