Home / 1,217,995,332.97-1,683,907,485.96-899,953,957.84

Finding the Fourth Proportional to 1,217,995,332.97, 1,683,907,485.96 and 899,953,957.84

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Solution

The fourth proportional to 1,217,995,332.97, 1,683,907,485.96 and 899,953,957.84 is: 1,244,207,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,995,332.97 : 1,683,907,485.96 = 899,953,957.84 : x
  2. Step 2: Convert to fraction form
    1,217,995,332.97/1,683,907,485.96 = 899,953,957.84/x
  3. Step 3: Cross multiply
    1,217,995,332.97x = 1,683,907,485.96 × 899,953,957.84
  4. Step 4: Simplify right side
    1,217,995,332.97x = 1,515,439,206,626,106,368
  5. Step 5: Solve for x
    x = 1,515,439,206,626,106,368/1,217,995,332.97
  6. Step 6: Final answer
    x = 1,244,207,728.56

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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.