Home / 1,223,642,827.02-1,688,627,344.26-666,725,874.06

Finding the Fourth Proportional to 1,223,642,827.02, 1,688,627,344.26 and 666,725,874.06

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Solution

The fourth proportional to 1,223,642,827.02, 1,688,627,344.26 and 666,725,874.06 is: 920,081,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,642,827.02 : 1,688,627,344.26 = 666,725,874.06 : x
  2. Step 2: Convert to fraction form
    1,223,642,827.02/1,688,627,344.26 = 666,725,874.06/x
  3. Step 3: Cross multiply
    1,223,642,827.02x = 1,688,627,344.26 × 666,725,874.06
  4. Step 4: Simplify right side
    1,223,642,827.02x = 1,125,851,542,063,364,864
  5. Step 5: Solve for x
    x = 1,125,851,542,063,364,864/1,223,642,827.02
  6. Step 6: Final answer
    x = 920,081,838.59

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Double scale
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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.