Home / 1,291,238,240,696.50-1,781,898,182,528.20-705,288,460,021.78

Finding the Fourth Proportional to 1,291,238,240,696.50, 1,781,898,182,528.20 and 705,288,460,021.78

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Solution

The fourth proportional to 1,291,238,240,696.50, 1,781,898,182,528.20 and 705,288,460,021.78 is: 973,292,290,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,238,240,696.50 : 1,781,898,182,528.20 = 705,288,460,021.78 : x
  2. Step 2: Convert to fraction form
    1,291,238,240,696.50/1,781,898,182,528.20 = 705,288,460,021.78/x
  3. Step 3: Cross multiply
    1,291,238,240,696.50x = 1,781,898,182,528.20 × 705,288,460,021.78
  4. Step 4: Simplify right side
    1,291,238,240,696.50x = 1,256,752,225,070,922,908,827,648
  5. Step 5: Solve for x
    x = 1,256,752,225,070,922,908,827,648/1,291,238,240,696.50
  6. Step 6: Final answer
    x = 973,292,290,656.62

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Double scale
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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.