Home / 1,291,238,240,698.50-1,781,898,182,531-705,288,460,023.78

Finding the Fourth Proportional to 1,291,238,240,698.50, 1,781,898,182,531 and 705,288,460,023.78

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Solution

The fourth proportional to 1,291,238,240,698.50, 1,781,898,182,531 and 705,288,460,023.78 is: 973,292,290,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,238,240,698.50 : 1,781,898,182,531 = 705,288,460,023.78 : x
  2. Step 2: Convert to fraction form
    1,291,238,240,698.50/1,781,898,182,531 = 705,288,460,023.78/x
  3. Step 3: Cross multiply
    1,291,238,240,698.50x = 1,781,898,182,531 × 705,288,460,023.78
  4. Step 4: Simplify right side
    1,291,238,240,698.50x = 1,256,752,225,076,461,537,591,296
  5. Step 5: Solve for x
    x = 1,256,752,225,076,461,537,591,296/1,291,238,240,698.50
  6. Step 6: Final answer
    x = 973,292,290,659.40

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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.