Home / 410,639,075.84-615,958,613.76-138,009,843.20

Finding the Fourth Proportional to 410,639,075.84, 615,958,613.76 and 138,009,843.20

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Solution

The fourth proportional to 410,639,075.84, 615,958,613.76 and 138,009,843.20 is: 207,014,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,639,075.84 : 615,958,613.76 = 138,009,843.20 : x
  2. Step 2: Convert to fraction form
    410,639,075.84/615,958,613.76 = 138,009,843.20/x
  3. Step 3: Cross multiply
    410,639,075.84x = 615,958,613.76 × 138,009,843.20
  4. Step 4: Simplify right side
    410,639,075.84x = 85,008,351,702,706,960
  5. Step 5: Solve for x
    x = 85,008,351,702,706,960/410,639,075.84
  6. Step 6: Final answer
    x = 207,014,764.80

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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.