Home / 781,782,197.59-1,078,855,259.64-424,546,851.62

Finding the Fourth Proportional to 781,782,197.59, 1,078,855,259.64 and 424,546,851.62

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Solution

The fourth proportional to 781,782,197.59, 1,078,855,259.64 and 424,546,851.62 is: 585,872,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,782,197.59 : 1,078,855,259.64 = 424,546,851.62 : x
  2. Step 2: Convert to fraction form
    781,782,197.59/1,078,855,259.64 = 424,546,851.62/x
  3. Step 3: Cross multiply
    781,782,197.59x = 1,078,855,259.64 × 424,546,851.62
  4. Step 4: Simplify right side
    781,782,197.59x = 458,024,603,831,716,928
  5. Step 5: Solve for x
    x = 458,024,603,831,716,928/781,782,197.59
  6. Step 6: Final answer
    x = 585,872,389.07

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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.