Home / 612,198,019.80-918,297,029.70-335,742,411.60

Finding the Fourth Proportional to 612,198,019.80, 918,297,029.70 and 335,742,411.60

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Solution

The fourth proportional to 612,198,019.80, 918,297,029.70 and 335,742,411.60 is: 503,613,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,198,019.80 : 918,297,029.70 = 335,742,411.60 : x
  2. Step 2: Convert to fraction form
    612,198,019.80/918,297,029.70 = 335,742,411.60/x
  3. Step 3: Cross multiply
    612,198,019.80x = 918,297,029.70 × 335,742,411.60
  4. Step 4: Simplify right side
    612,198,019.80x = 308,311,259,316,594,880
  5. Step 5: Solve for x
    x = 308,311,259,316,594,880/612,198,019.80
  6. Step 6: Final answer
    x = 503,613,617.40

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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.