Home / 77,478,934.37-106,925,765.11-42,671,615.58

Finding the Fourth Proportional to 77,478,934.37, 106,925,765.11 and 42,671,615.58

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Solution

The fourth proportional to 77,478,934.37, 106,925,765.11 and 42,671,615.58 is: 58,889,492.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478,934.37 : 106,925,765.11 = 42,671,615.58 : x
  2. Step 2: Convert to fraction form
    77,478,934.37/106,925,765.11 = 42,671,615.58/x
  3. Step 3: Cross multiply
    77,478,934.37x = 106,925,765.11 × 42,671,615.58
  4. Step 4: Simplify right side
    77,478,934.37x = 4,562,695,144,264,617
  5. Step 5: Solve for x
    x = 4,562,695,144,264,617/77,478,934.37
  6. Step 6: Final answer
    x = 58,889,492.76

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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.