Home / 487,931,483,997.81-673,336,389,430.80-268,195,478,651.16

Finding the Fourth Proportional to 487,931,483,997.81, 673,336,389,430.80 and 268,195,478,651.16

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Solution

The fourth proportional to 487,931,483,997.81, 673,336,389,430.80 and 268,195,478,651.16 is: 370,104,781,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,931,483,997.81 : 673,336,389,430.80 = 268,195,478,651.16 : x
  2. Step 2: Convert to fraction form
    487,931,483,997.81/673,336,389,430.80 = 268,195,478,651.16/x
  3. Step 3: Cross multiply
    487,931,483,997.81x = 673,336,389,430.80 × 268,195,478,651.16
  4. Step 4: Simplify right side
    487,931,483,997.81x = 180,585,775,256,637,299,228,672
  5. Step 5: Solve for x
    x = 180,585,775,256,637,299,228,672/487,931,483,997.81
  6. Step 6: Final answer
    x = 370,104,781,468.56

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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.