Home / 7,219,916.98-9,963,595.65-3,956,705.21

Finding the Fourth Proportional to 7,219,916.98, 9,963,595.65 and 3,956,705.21

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Solution

The fourth proportional to 7,219,916.98, 9,963,595.65 and 3,956,705.21 is: 5,460,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219,916.98 : 9,963,595.65 = 3,956,705.21 : x
  2. Step 2: Convert to fraction form
    7,219,916.98/9,963,595.65 = 3,956,705.21/x
  3. Step 3: Cross multiply
    7,219,916.98x = 9,963,595.65 × 3,956,705.21
  4. Step 4: Simplify right side
    7,219,916.98x = 39,423,010,858,434.97
  5. Step 5: Solve for x
    x = 39,423,010,858,434.97/7,219,916.98
  6. Step 6: Final answer
    x = 5,460,313.60

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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.