Home / 81,688,511.48-122,532,767.21-81,688,511.48

Finding the Fourth Proportional to 81,688,511.48, 122,532,767.21 and 81,688,511.48

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Solution

The fourth proportional to 81,688,511.48, 122,532,767.21 and 81,688,511.48 is: 122,532,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,688,511.48 : 122,532,767.21 = 81,688,511.48 : x
  2. Step 2: Convert to fraction form
    81,688,511.48/122,532,767.21 = 81,688,511.48/x
  3. Step 3: Cross multiply
    81,688,511.48x = 122,532,767.21 × 81,688,511.48
  4. Step 4: Simplify right side
    81,688,511.48x = 10,009,519,360,501,810
  5. Step 5: Solve for x
    x = 10,009,519,360,501,810/81,688,511.48
  6. Step 6: Final answer
    x = 122,532,767.21

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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.