Home / 72,273,183,489.63-99,739,385,117.44-39,721,550,945.51

Finding the Fourth Proportional to 72,273,183,489.63, 99,739,385,117.44 and 39,721,550,945.51

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Solution

The fourth proportional to 72,273,183,489.63, 99,739,385,117.44 and 39,721,550,945.51 is: 54,817,054,900.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273,183,489.63 : 99,739,385,117.44 = 39,721,550,945.51 : x
  2. Step 2: Convert to fraction form
    72,273,183,489.63/99,739,385,117.44 = 39,721,550,945.51/x
  3. Step 3: Cross multiply
    72,273,183,489.63x = 99,739,385,117.44 × 39,721,550,945.51
  4. Step 4: Simplify right side
    72,273,183,489.63x = 3,961,803,067,216,235,069,440
  5. Step 5: Solve for x
    x = 3,961,803,067,216,235,069,440/72,273,183,489.63
  6. Step 6: Final answer
    x = 54,817,054,900.93

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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.