Home / 984,819,987.42-1,477,228,159.72-320,833,214.36

Finding the Fourth Proportional to 984,819,987.42, 1,477,228,159.72 and 320,833,214.36

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Solution

The fourth proportional to 984,819,987.42, 1,477,228,159.72 and 320,833,214.36 is: 481,249,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,819,987.42 : 1,477,228,159.72 = 320,833,214.36 : x
  2. Step 2: Convert to fraction form
    984,819,987.42/1,477,228,159.72 = 320,833,214.36/x
  3. Step 3: Cross multiply
    984,819,987.42x = 1,477,228,159.72 × 320,833,214.36
  4. Step 4: Simplify right side
    984,819,987.42x = 473,943,858,826,075,136
  5. Step 5: Solve for x
    x = 473,943,858,826,075,136/984,819,987.42
  6. Step 6: Final answer
    x = 481,249,228.16

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1.5x scale

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.