Home / 613,020,812.37-918,784,180.32-317,753,148.36

Finding the Fourth Proportional to 613,020,812.37, 918,784,180.32 and 317,753,148.36

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Solution

The fourth proportional to 613,020,812.37, 918,784,180.32 and 317,753,148.36 is: 476,242,502.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,020,812.37 : 918,784,180.32 = 317,753,148.36 : x
  2. Step 2: Convert to fraction form
    613,020,812.37/918,784,180.32 = 317,753,148.36/x
  3. Step 3: Cross multiply
    613,020,812.37x = 918,784,180.32 × 317,753,148.36
  4. Step 4: Simplify right side
    613,020,812.37x = 291,946,565,960,041,984
  5. Step 5: Solve for x
    x = 291,946,565,960,041,984/613,020,812.37
  6. Step 6: Final answer
    x = 476,242,502.81

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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.