Home / 72,514,907.80-108,772,361.70-56,075,666.20

Finding the Fourth Proportional to 72,514,907.80, 108,772,361.70 and 56,075,666.20

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Solution

The fourth proportional to 72,514,907.80, 108,772,361.70 and 56,075,666.20 is: 84,113,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,514,907.80 : 108,772,361.70 = 56,075,666.20 : x
  2. Step 2: Convert to fraction form
    72,514,907.80/108,772,361.70 = 56,075,666.20/x
  3. Step 3: Cross multiply
    72,514,907.80x = 108,772,361.70 × 56,075,666.20
  4. Step 4: Simplify right side
    72,514,907.80x = 6,099,482,646,474,865
  5. Step 5: Solve for x
    x = 6,099,482,646,474,865/72,514,907.80
  6. Step 6: Final answer
    x = 84,113,499.30

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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.