Home / 1,276,963,923.44-1,762,060,470.36-720,013,781.36

Finding the Fourth Proportional to 1,276,963,923.44, 1,762,060,470.36 and 720,013,781.36

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Solution

The fourth proportional to 1,276,963,923.44, 1,762,060,470.36 and 720,013,781.36 is: 993,534,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,963,923.44 : 1,762,060,470.36 = 720,013,781.36 : x
  2. Step 2: Convert to fraction form
    1,276,963,923.44/1,762,060,470.36 = 720,013,781.36/x
  3. Step 3: Cross multiply
    1,276,963,923.44x = 1,762,060,470.36 × 720,013,781.36
  4. Step 4: Simplify right side
    1,276,963,923.44x = 1,268,707,822,248,883,712
  5. Step 5: Solve for x
    x = 1,268,707,822,248,883,712/1,276,963,923.44
  6. Step 6: Final answer
    x = 993,534,585.40

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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.