Home / 72,273,183,489.72-99,739,385,117.57-39,721,550,945.60

Finding the Fourth Proportional to 72,273,183,489.72, 99,739,385,117.57 and 39,721,550,945.60

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Solution

The fourth proportional to 72,273,183,489.72, 99,739,385,117.57 and 39,721,550,945.60 is: 54,817,054,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273,183,489.72 : 99,739,385,117.57 = 39,721,550,945.60 : x
  2. Step 2: Convert to fraction form
    72,273,183,489.72/99,739,385,117.57 = 39,721,550,945.60/x
  3. Step 3: Cross multiply
    72,273,183,489.72x = 99,739,385,117.57 × 39,721,550,945.60
  4. Step 4: Simplify right side
    72,273,183,489.72x = 3,961,803,067,230,674,485,248
  5. Step 5: Solve for x
    x = 3,961,803,067,230,674,485,248/72,273,183,489.72
  6. Step 6: Final answer
    x = 54,817,054,901.06

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Double scale
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1.5x scale

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.