Home / 389,022,725.32-536,849,755.78-210,406,813.10

Finding the Fourth Proportional to 389,022,725.32, 536,849,755.78 and 210,406,813.10

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Solution

The fourth proportional to 389,022,725.32, 536,849,755.78 and 210,406,813.10 is: 290,360,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,725.32 : 536,849,755.78 = 210,406,813.10 : x
  2. Step 2: Convert to fraction form
    389,022,725.32/536,849,755.78 = 210,406,813.10/x
  3. Step 3: Cross multiply
    389,022,725.32x = 536,849,755.78 × 210,406,813.10
  4. Step 4: Simplify right side
    389,022,725.32x = 112,956,846,227,183,088
  5. Step 5: Solve for x
    x = 112,956,846,227,183,088/389,022,725.32
  6. Step 6: Final answer
    x = 290,360,533.91

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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.