Home / 7,038,220-9,712,743.60-3,818,956

Finding the Fourth Proportional to 7,038,220, 9,712,743.60 and 3,818,956

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Solution

The fourth proportional to 7,038,220, 9,712,743.60 and 3,818,956 is: 5,270,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038,220 : 9,712,743.60 = 3,818,956 : x
  2. Step 2: Convert to fraction form
    7,038,220/9,712,743.60 = 3,818,956/x
  3. Step 3: Cross multiply
    7,038,220x = 9,712,743.60 × 3,818,956
  4. Step 4: Simplify right side
    7,038,220x = 37,092,540,447,681.60
  5. Step 5: Solve for x
    x = 37,092,540,447,681.60/7,038,220
  6. Step 6: Final answer
    x = 5,270,159.28

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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.