Home / 38,689,111.17-53,390,971.53-21,285,082.76

Finding the Fourth Proportional to 38,689,111.17, 53,390,971.53 and 21,285,082.76

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Solution

The fourth proportional to 38,689,111.17, 53,390,971.53 and 21,285,082.76 is: 29,373,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689,111.17 : 53,390,971.53 = 21,285,082.76 : x
  2. Step 2: Convert to fraction form
    38,689,111.17/53,390,971.53 = 21,285,082.76/x
  3. Step 3: Cross multiply
    38,689,111.17x = 53,390,971.53 × 21,285,082.76
  4. Step 4: Simplify right side
    38,689,111.17x = 1,136,431,247,385,899
  5. Step 5: Solve for x
    x = 1,136,431,247,385,899/38,689,111.17
  6. Step 6: Final answer
    x = 29,373,413.17

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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.