Home / 1,282,430,476.62-1,769,740,531.28-717,919,994.51

Finding the Fourth Proportional to 1,282,430,476.62, 1,769,740,531.28 and 717,919,994.51

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Solution

The fourth proportional to 1,282,430,476.62, 1,769,740,531.28 and 717,919,994.51 is: 990,722,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,430,476.62 : 1,769,740,531.28 = 717,919,994.51 : x
  2. Step 2: Convert to fraction form
    1,282,430,476.62/1,769,740,531.28 = 717,919,994.51/x
  3. Step 3: Cross multiply
    1,282,430,476.62x = 1,769,740,531.28 × 717,919,994.51
  4. Step 4: Simplify right side
    1,282,430,476.62x = 1,270,532,112,501,537,024
  5. Step 5: Solve for x
    x = 1,270,532,112,501,537,024/1,282,430,476.62
  6. Step 6: Final answer
    x = 990,722,020.15

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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.