Home / 1,224,881,764,374.40-1,690,328,235,896.40-668,686,891,275.65

Finding the Fourth Proportional to 1,224,881,764,374.40, 1,690,328,235,896.40 and 668,686,891,275.65

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Solution

The fourth proportional to 1,224,881,764,374.40, 1,690,328,235,896.40 and 668,686,891,275.65 is: 922,783,215,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,881,764,374.40 : 1,690,328,235,896.40 = 668,686,891,275.65 : x
  2. Step 2: Convert to fraction form
    1,224,881,764,374.40/1,690,328,235,896.40 = 668,686,891,275.65/x
  3. Step 3: Cross multiply
    1,224,881,764,374.40x = 1,690,328,235,896.40 × 668,686,891,275.65
  4. Step 4: Simplify right side
    1,224,881,764,374.40x = 1,130,300,333,297,017,294,946,304
  5. Step 5: Solve for x
    x = 1,130,300,333,297,017,294,946,304/1,224,881,764,374.40
  6. Step 6: Final answer
    x = 922,783,215,630.87

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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.