Home / 72,006,625.44-99,369,139.73-38,966,870.81

Finding the Fourth Proportional to 72,006,625.44, 99,369,139.73 and 38,966,870.81

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Solution

The fourth proportional to 72,006,625.44, 99,369,139.73 and 38,966,870.81 is: 53,774,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,625.44 : 99,369,139.73 = 38,966,870.81 : x
  2. Step 2: Convert to fraction form
    72,006,625.44/99,369,139.73 = 38,966,870.81/x
  3. Step 3: Cross multiply
    72,006,625.44x = 99,369,139.73 × 38,966,870.81
  4. Step 4: Simplify right side
    72,006,625.44x = 3,872,104,430,413,336.50
  5. Step 5: Solve for x
    x = 3,872,104,430,413,336.50/72,006,625.44
  6. Step 6: Final answer
    x = 53,774,279.89

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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.