Home / 1,207,509,837,722-1,811,130,508,918.80-432,130,802,146.74

Finding the Fourth Proportional to 1,207,509,837,722, 1,811,130,508,918.80 and 432,130,802,146.74

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Solution

The fourth proportional to 1,207,509,837,722, 1,811,130,508,918.80 and 432,130,802,146.74 is: 648,148,160,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,509,837,722 : 1,811,130,508,918.80 = 432,130,802,146.74 : x
  2. Step 2: Convert to fraction form
    1,207,509,837,722/1,811,130,508,918.80 = 432,130,802,146.74/x
  3. Step 3: Cross multiply
    1,207,509,837,722x = 1,811,130,508,918.80 × 432,130,802,146.74
  4. Step 4: Simplify right side
    1,207,509,837,722x = 782,645,279,611,514,490,191,872
  5. Step 5: Solve for x
    x = 782,645,279,611,514,490,191,872/1,207,509,837,722
  6. Step 6: Final answer
    x = 648,148,160,091.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.