Home / 1,574,656,007.80-2,361,984,011.70-839,991,969.40

Finding the Fourth Proportional to 1,574,656,007.80, 2,361,984,011.70 and 839,991,969.40

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Solution

The fourth proportional to 1,574,656,007.80, 2,361,984,011.70 and 839,991,969.40 is: 1,259,987,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574,656,007.80 : 2,361,984,011.70 = 839,991,969.40 : x
  2. Step 2: Convert to fraction form
    1,574,656,007.80/2,361,984,011.70 = 839,991,969.40/x
  3. Step 3: Cross multiply
    1,574,656,007.80x = 2,361,984,011.70 × 839,991,969.40
  4. Step 4: Simplify right side
    1,574,656,007.80x = 1,984,047,601,679,195,392
  5. Step 5: Solve for x
    x = 1,984,047,601,679,195,392/1,574,656,007.80
  6. Step 6: Final answer
    x = 1,259,987,954.10

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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.