Home / 77,478,935.12-106,925,766.14-42,671,616.33

Finding the Fourth Proportional to 77,478,935.12, 106,925,766.14 and 42,671,616.33

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Solution

The fourth proportional to 77,478,935.12, 106,925,766.14 and 42,671,616.33 is: 58,889,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478,935.12 : 106,925,766.14 = 42,671,616.33 : x
  2. Step 2: Convert to fraction form
    77,478,935.12/106,925,766.14 = 42,671,616.33/x
  3. Step 3: Cross multiply
    77,478,935.12x = 106,925,766.14 × 42,671,616.33
  4. Step 4: Simplify right side
    77,478,935.12x = 4,562,695,268,624,064
  5. Step 5: Solve for x
    x = 4,562,695,268,624,064/77,478,935.12
  6. Step 6: Final answer
    x = 58,889,493.79

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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.