Home / 72,004,560.90-99,334,628.98-42,220,006.09

Finding the Fourth Proportional to 72,004,560.90, 99,334,628.98 and 42,220,006.09

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Solution

The fourth proportional to 72,004,560.90, 99,334,628.98 and 42,220,006.09 is: 58,245,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004,560.90 : 99,334,628.98 = 42,220,006.09 : x
  2. Step 2: Convert to fraction form
    72,004,560.90/99,334,628.98 = 42,220,006.09/x
  3. Step 3: Cross multiply
    72,004,560.90x = 99,334,628.98 × 42,220,006.09
  4. Step 4: Simplify right side
    72,004,560.90x = 4,193,908,640,129,604
  5. Step 5: Solve for x
    x = 4,193,908,640,129,604/72,004,560.90
  6. Step 6: Final answer
    x = 58,245,041.54

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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.