Home / 1,190,644,038.71-1,643,080,168.01-662,003,929.61

Finding the Fourth Proportional to 1,190,644,038.71, 1,643,080,168.01 and 662,003,929.61

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Solution

The fourth proportional to 1,190,644,038.71, 1,643,080,168.01 and 662,003,929.61 is: 913,560,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,644,038.71 : 1,643,080,168.01 = 662,003,929.61 : x
  2. Step 2: Convert to fraction form
    1,190,644,038.71/1,643,080,168.01 = 662,003,929.61/x
  3. Step 3: Cross multiply
    1,190,644,038.71x = 1,643,080,168.01 × 662,003,929.61
  4. Step 4: Simplify right side
    1,190,644,038.71x = 1,087,725,527,886,878,976
  5. Step 5: Solve for x
    x = 1,087,725,527,886,878,976/1,190,644,038.71
  6. Step 6: Final answer
    x = 913,560,638.21

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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.