Home / 811,377,006.81-1,216,662,500.33-258,607,508.01

Finding the Fourth Proportional to 811,377,006.81, 1,216,662,500.33 and 258,607,508.01

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Solution

The fourth proportional to 811,377,006.81, 1,216,662,500.33 and 258,607,508.01 is: 387,782,812.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,377,006.81 : 1,216,662,500.33 = 258,607,508.01 : x
  2. Step 2: Convert to fraction form
    811,377,006.81/1,216,662,500.33 = 258,607,508.01/x
  3. Step 3: Cross multiply
    811,377,006.81x = 1,216,662,500.33 × 258,607,508.01
  4. Step 4: Simplify right side
    811,377,006.81x = 314,638,057,294,658,432
  5. Step 5: Solve for x
    x = 314,638,057,294,658,432/811,377,006.81
  6. Step 6: Final answer
    x = 387,782,812.00

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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.