Home / 1,511,917,031.10-2,086,454,420.69-877,215,444.60

Finding the Fourth Proportional to 1,511,917,031.10, 2,086,454,420.69 and 877,215,444.60

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Solution

The fourth proportional to 1,511,917,031.10, 2,086,454,420.69 and 877,215,444.60 is: 1,210,562,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,917,031.10 : 2,086,454,420.69 = 877,215,444.60 : x
  2. Step 2: Convert to fraction form
    1,511,917,031.10/2,086,454,420.69 = 877,215,444.60/x
  3. Step 3: Cross multiply
    1,511,917,031.10x = 2,086,454,420.69 × 877,215,444.60
  4. Step 4: Simplify right side
    1,511,917,031.10x = 1,830,270,042,278,827,776
  5. Step 5: Solve for x
    x = 1,830,270,042,278,827,776/1,511,917,031.10
  6. Step 6: Final answer
    x = 1,210,562,487.64

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Double scale
Find fourth proportional to 1,511,917,032.10, 2,086,454,422.07 and 877,215,445.60
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1.5x scale

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.