Home / 648,084,541-894,365,064.66-354,722,810.44

Finding the Fourth Proportional to 648,084,541, 894,365,064.66 and 354,722,810.44

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Solution

The fourth proportional to 648,084,541, 894,365,064.66 and 354,722,810.44 is: 489,522,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,084,541 : 894,365,064.66 = 354,722,810.44 : x
  2. Step 2: Convert to fraction form
    648,084,541/894,365,064.66 = 354,722,810.44/x
  3. Step 3: Cross multiply
    648,084,541x = 894,365,064.66 × 354,722,810.44
  4. Step 4: Simplify right side
    648,084,541x = 317,251,689,295,547,520
  5. Step 5: Solve for x
    x = 317,251,689,295,547,520/648,084,541
  6. Step 6: Final answer
    x = 489,522,075.02

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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.