Home / 360,685,195,929.96-497,755,290,498.72-212,209,453,217.32

Finding the Fourth Proportional to 360,685,195,929.96, 497,755,290,498.72 and 212,209,453,217.32

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Solution

The fourth proportional to 360,685,195,929.96, 497,755,290,498.72 and 212,209,453,217.32 is: 292,854,764,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,685,195,929.96 : 497,755,290,498.72 = 212,209,453,217.32 : x
  2. Step 2: Convert to fraction form
    360,685,195,929.96/497,755,290,498.72 = 212,209,453,217.32/x
  3. Step 3: Cross multiply
    360,685,195,929.96x = 497,755,290,498.72 × 212,209,453,217.32
  4. Step 4: Simplify right side
    360,685,195,929.96x = 105,628,378,032,761,640,845,312
  5. Step 5: Solve for x
    x = 105,628,378,032,761,640,845,312/360,685,195,929.96
  6. Step 6: Final answer
    x = 292,854,764,278.36

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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.