Home / 12,075,116.81-18,121,073.29-7,804,693.13

Finding the Fourth Proportional to 12,075,116.81, 18,121,073.29 and 7,804,693.13

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Solution

The fourth proportional to 12,075,116.81, 18,121,073.29 and 7,804,693.13 is: 11,712,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075,116.81 : 18,121,073.29 = 7,804,693.13 : x
  2. Step 2: Convert to fraction form
    12,075,116.81/18,121,073.29 = 7,804,693.13/x
  3. Step 3: Cross multiply
    12,075,116.81x = 18,121,073.29 × 7,804,693.13
  4. Step 4: Simplify right side
    12,075,116.81x = 141,429,416,104,572.41
  5. Step 5: Solve for x
    x = 141,429,416,104,572.41/12,075,116.81
  6. Step 6: Final answer
    x = 11,712,467.75

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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.