Home / 687,183,893.78-1,030,642,807.74-267,004,545.08

Finding the Fourth Proportional to 687,183,893.78, 1,030,642,807.74 and 267,004,545.08

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Solution

The fourth proportional to 687,183,893.78, 1,030,642,807.74 and 267,004,545.08 is: 400,455,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,183,893.78 : 1,030,642,807.74 = 267,004,545.08 : x
  2. Step 2: Convert to fraction form
    687,183,893.78/1,030,642,807.74 = 267,004,545.08/x
  3. Step 3: Cross multiply
    687,183,893.78x = 1,030,642,807.74 × 267,004,545.08
  4. Step 4: Simplify right side
    687,183,893.78x = 275,186,314,020,592,608
  5. Step 5: Solve for x
    x = 275,186,314,020,592,608/687,183,893.78
  6. Step 6: Final answer
    x = 400,455,127.82

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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.