Home / 938,012,596.88-1,407,018,939.06-642,616,431.44

Finding the Fourth Proportional to 938,012,596.88, 1,407,018,939.06 and 642,616,431.44

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Solution

The fourth proportional to 938,012,596.88, 1,407,018,939.06 and 642,616,431.44 is: 963,924,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,012,596.88 : 1,407,018,939.06 = 642,616,431.44 : x
  2. Step 2: Convert to fraction form
    938,012,596.88/1,407,018,939.06 = 642,616,431.44/x
  3. Step 3: Cross multiply
    938,012,596.88x = 1,407,018,939.06 × 642,616,431.44
  4. Step 4: Simplify right side
    938,012,596.88x = 904,173,489,580,196,864
  5. Step 5: Solve for x
    x = 904,173,489,580,196,864/938,012,596.88
  6. Step 6: Final answer
    x = 963,924,677.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.