Home / 813,963,324.42-1,123,269,940.80-456,681,779.28

Finding the Fourth Proportional to 813,963,324.42, 1,123,269,940.80 and 456,681,779.28

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Solution

The fourth proportional to 813,963,324.42, 1,123,269,940.80 and 456,681,779.28 is: 630,221,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,963,324.42 : 1,123,269,940.80 = 456,681,779.28 : x
  2. Step 2: Convert to fraction form
    813,963,324.42/1,123,269,940.80 = 456,681,779.28/x
  3. Step 3: Cross multiply
    813,963,324.42x = 1,123,269,940.80 × 456,681,779.28
  4. Step 4: Simplify right side
    813,963,324.42x = 512,976,915,176,284,224
  5. Step 5: Solve for x
    x = 512,976,915,176,284,224/813,963,324.42
  6. Step 6: Final answer
    x = 630,221,165.73

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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.