Home / 208,457,018-312,482,190.64-99,252,847.16

Finding the Fourth Proportional to 208,457,018, 312,482,190.64 and 99,252,847.16

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Solution

The fourth proportional to 208,457,018, 312,482,190.64 and 99,252,847.16 is: 148,782,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,457,018 : 312,482,190.64 = 99,252,847.16 : x
  2. Step 2: Convert to fraction form
    208,457,018/312,482,190.64 = 99,252,847.16/x
  3. Step 3: Cross multiply
    208,457,018x = 312,482,190.64 × 99,252,847.16
  4. Step 4: Simplify right side
    208,457,018x = 31,014,747,107,813,900
  5. Step 5: Solve for x
    x = 31,014,747,107,813,900/208,457,018
  6. Step 6: Final answer
    x = 148,782,456.00

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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.