Home / 13,365,966.80-18,445,050.12-7,254,396.56

Finding the Fourth Proportional to 13,365,966.80, 18,445,050.12 and 7,254,396.56

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Solution

The fourth proportional to 13,365,966.80, 18,445,050.12 and 7,254,396.56 is: 10,011,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365,966.80 : 18,445,050.12 = 7,254,396.56 : x
  2. Step 2: Convert to fraction form
    13,365,966.80/18,445,050.12 = 7,254,396.56/x
  3. Step 3: Cross multiply
    13,365,966.80x = 18,445,050.12 × 7,254,396.56
  4. Step 4: Simplify right side
    13,365,966.80x = 133,807,708,139,555.59
  5. Step 5: Solve for x
    x = 133,807,708,139,555.59/13,365,966.80
  6. Step 6: Final answer
    x = 10,011,075.90

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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.