Home / 398,578,111.70-597,979,141.95-194,112,857.30

Finding the Fourth Proportional to 398,578,111.70, 597,979,141.95 and 194,112,857.30

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Solution

The fourth proportional to 398,578,111.70, 597,979,141.95 and 194,112,857.30 is: 291,223,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,578,111.70 : 597,979,141.95 = 194,112,857.30 : x
  2. Step 2: Convert to fraction form
    398,578,111.70/597,979,141.95 = 194,112,857.30/x
  3. Step 3: Cross multiply
    398,578,111.70x = 597,979,141.95 × 194,112,857.30
  4. Step 4: Simplify right side
    398,578,111.70x = 116,075,439,849,716,816
  5. Step 5: Solve for x
    x = 116,075,439,849,716,816/398,578,111.70
  6. Step 6: Final answer
    x = 291,223,818.98

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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.