Home / 161,860,665.78-242,870,709.96-75,586,533.84

Finding the Fourth Proportional to 161,860,665.78, 242,870,709.96 and 75,586,533.84

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Solution

The fourth proportional to 161,860,665.78, 242,870,709.96 and 75,586,533.84 is: 113,417,024.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,860,665.78 : 242,870,709.96 = 75,586,533.84 : x
  2. Step 2: Convert to fraction form
    161,860,665.78/242,870,709.96 = 75,586,533.84/x
  3. Step 3: Cross multiply
    161,860,665.78x = 242,870,709.96 × 75,586,533.84
  4. Step 4: Simplify right side
    161,860,665.78x = 18,357,755,137,136,368
  5. Step 5: Solve for x
    x = 18,357,755,137,136,368/161,860,665.78
  6. Step 6: Final answer
    x = 113,417,024.75

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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.