Home / 1,389,835,017.04-1,917,964,904.79-754,749,957.55

Finding the Fourth Proportional to 1,389,835,017.04, 1,917,964,904.79 and 754,749,957.55

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Solution

The fourth proportional to 1,389,835,017.04, 1,917,964,904.79 and 754,749,957.55 is: 1,041,550,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,835,017.04 : 1,917,964,904.79 = 754,749,957.55 : x
  2. Step 2: Convert to fraction form
    1,389,835,017.04/1,917,964,904.79 = 754,749,957.55/x
  3. Step 3: Cross multiply
    1,389,835,017.04x = 1,917,964,904.79 × 754,749,957.55
  4. Step 4: Simplify right side
    1,389,835,017.04x = 1,447,583,930,472,642,048
  5. Step 5: Solve for x
    x = 1,447,583,930,472,642,048/1,389,835,017.04
  6. Step 6: Final answer
    x = 1,041,550,912.68

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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.