Home / 13,355,679.82-18,430,657.28-7,475,312.25

Finding the Fourth Proportional to 13,355,679.82, 18,430,657.28 and 7,475,312.25

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Solution

The fourth proportional to 13,355,679.82, 18,430,657.28 and 7,475,312.25 is: 10,315,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355,679.82 : 18,430,657.28 = 7,475,312.25 : x
  2. Step 2: Convert to fraction form
    13,355,679.82/18,430,657.28 = 7,475,312.25/x
  3. Step 3: Cross multiply
    13,355,679.82x = 18,430,657.28 × 7,475,312.25
  4. Step 4: Simplify right side
    13,355,679.82x = 137,774,918,011,205.83
  5. Step 5: Solve for x
    x = 137,774,918,011,205.83/13,355,679.82
  6. Step 6: Final answer
    x = 10,315,829.66

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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.