Home / 21,006,412.80-31,509,158.40-5,859,916.80

Finding the Fourth Proportional to 21,006,412.80, 31,509,158.40 and 5,859,916.80

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Solution

The fourth proportional to 21,006,412.80, 31,509,158.40 and 5,859,916.80 is: 8,789,746.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006,412.80 : 31,509,158.40 = 5,859,916.80 : x
  2. Step 2: Convert to fraction form
    21,006,412.80/31,509,158.40 = 5,859,916.80/x
  3. Step 3: Cross multiply
    21,006,412.80x = 31,509,158.40 × 5,859,916.80
  4. Step 4: Simplify right side
    21,006,412.80x = 184,641,046,662,021.09
  5. Step 5: Solve for x
    x = 184,641,046,662,021.09/21,006,412.80
  6. Step 6: Final answer
    x = 8,789,746.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.