Home / 77,478,936.99-106,925,768.73-42,671,618.21

Finding the Fourth Proportional to 77,478,936.99, 106,925,768.73 and 42,671,618.21

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Solution

The fourth proportional to 77,478,936.99, 106,925,768.73 and 42,671,618.21 is: 58,889,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478,936.99 : 106,925,768.73 = 42,671,618.21 : x
  2. Step 2: Convert to fraction form
    77,478,936.99/106,925,768.73 = 42,671,618.21/x
  3. Step 3: Cross multiply
    77,478,936.99x = 106,925,768.73 × 42,671,618.21
  4. Step 4: Simplify right side
    77,478,936.99x = 4,562,695,579,522,688
  5. Step 5: Solve for x
    x = 4,562,695,579,522,688/77,478,936.99
  6. Step 6: Final answer
    x = 58,889,496.38

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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.