Home / 72,146,608.94-99,559,652.01-39,106,148.67

Finding the Fourth Proportional to 72,146,608.94, 99,559,652.01 and 39,106,148.67

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Solution

The fourth proportional to 72,146,608.94, 99,559,652.01 and 39,106,148.67 is: 53,965,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146,608.94 : 99,559,652.01 = 39,106,148.67 : x
  2. Step 2: Convert to fraction form
    72,146,608.94/99,559,652.01 = 39,106,148.67/x
  3. Step 3: Cross multiply
    72,146,608.94x = 99,559,652.01 × 39,106,148.67
  4. Step 4: Simplify right side
    72,146,608.94x = 3,893,394,553,285,423.50
  5. Step 5: Solve for x
    x = 3,893,394,553,285,423.50/72,146,608.94
  6. Step 6: Final answer
    x = 53,965,038.84

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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.