Home / 13,406,689-18,501,075.30-7,295,012.20

Finding the Fourth Proportional to 13,406,689, 18,501,075.30 and 7,295,012.20

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Solution

The fourth proportional to 13,406,689, 18,501,075.30 and 7,295,012.20 is: 10,067,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406,689 : 18,501,075.30 = 7,295,012.20 : x
  2. Step 2: Convert to fraction form
    13,406,689/18,501,075.30 = 7,295,012.20/x
  3. Step 3: Cross multiply
    13,406,689x = 18,501,075.30 × 7,295,012.20
  4. Step 4: Simplify right side
    13,406,689x = 134,965,570,026,618.67
  5. Step 5: Solve for x
    x = 134,965,570,026,618.67/13,406,689
  6. Step 6: Final answer
    x = 10,067,032.21

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1.5x scale

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.