Home / 12,971,075.23-17,899,465.35-7,091,012.87

Finding the Fourth Proportional to 12,971,075.23, 17,899,465.35 and 7,091,012.87

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Solution

The fourth proportional to 12,971,075.23, 17,899,465.35 and 7,091,012.87 is: 9,785,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971,075.23 : 17,899,465.35 = 7,091,012.87 : x
  2. Step 2: Convert to fraction form
    12,971,075.23/17,899,465.35 = 7,091,012.87/x
  3. Step 3: Cross multiply
    12,971,075.23x = 17,899,465.35 × 7,091,012.87
  4. Step 4: Simplify right side
    12,971,075.23x = 126,925,339,167,186.05
  5. Step 5: Solve for x
    x = 126,925,339,167,186.05/12,971,075.23
  6. Step 6: Final answer
    x = 9,785,259.66

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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.