Home / 1,208,995,213.92-1,813,486,843.02-472,139,947.32

Finding the Fourth Proportional to 1,208,995,213.92, 1,813,486,843.02 and 472,139,947.32

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Solution

The fourth proportional to 1,208,995,213.92, 1,813,486,843.02 and 472,139,947.32 is: 708,207,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,995,213.92 : 1,813,486,843.02 = 472,139,947.32 : x
  2. Step 2: Convert to fraction form
    1,208,995,213.92/1,813,486,843.02 = 472,139,947.32/x
  3. Step 3: Cross multiply
    1,208,995,213.92x = 1,813,486,843.02 × 472,139,947.32
  4. Step 4: Simplify right side
    1,208,995,213.92x = 856,219,582,528,975,872
  5. Step 5: Solve for x
    x = 856,219,582,528,975,872/1,208,995,213.92
  6. Step 6: Final answer
    x = 708,207,586.49

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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.