Home / 5,220,429.67-7,830,645.18-1,626,486.40

Finding the Fourth Proportional to 5,220,429.67, 7,830,645.18 and 1,626,486.40

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Solution

The fourth proportional to 5,220,429.67, 7,830,645.18 and 1,626,486.40 is: 2,439,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,429.67 : 7,830,645.18 = 1,626,486.40 : x
  2. Step 2: Convert to fraction form
    5,220,429.67/7,830,645.18 = 1,626,486.40/x
  3. Step 3: Cross multiply
    5,220,429.67x = 7,830,645.18 × 1,626,486.40
  4. Step 4: Simplify right side
    5,220,429.67x = 12,736,437,888,495.55
  5. Step 5: Solve for x
    x = 12,736,437,888,495.55/5,220,429.67
  6. Step 6: Final answer
    x = 2,439,729.81

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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.