Home / 315,035,198.70-472,549,687.65-99,624,446.70

Finding the Fourth Proportional to 315,035,198.70, 472,549,687.65 and 99,624,446.70

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Solution

The fourth proportional to 315,035,198.70, 472,549,687.65 and 99,624,446.70 is: 149,435,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,035,198.70 : 472,549,687.65 = 99,624,446.70 : x
  2. Step 2: Convert to fraction form
    315,035,198.70/472,549,687.65 = 99,624,446.70/x
  3. Step 3: Cross multiply
    315,035,198.70x = 472,549,687.65 × 99,624,446.70
  4. Step 4: Simplify right side
    315,035,198.70x = 47,077,501,170,389,072
  5. Step 5: Solve for x
    x = 47,077,501,170,389,072/315,035,198.70
  6. Step 6: Final answer
    x = 149,435,686.44

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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.