Home / 357,607,851.84-493,387,922.16-208,821,644.28

Finding the Fourth Proportional to 357,607,851.84, 493,387,922.16 and 208,821,644.28

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Solution

The fourth proportional to 357,607,851.84, 493,387,922.16 and 208,821,644.28 is: 288,109,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,607,851.84 : 493,387,922.16 = 208,821,644.28 : x
  2. Step 2: Convert to fraction form
    357,607,851.84/493,387,922.16 = 208,821,644.28/x
  3. Step 3: Cross multiply
    357,607,851.84x = 493,387,922.16 × 208,821,644.28
  4. Step 4: Simplify right side
    357,607,851.84x = 103,030,077,173,343,856
  5. Step 5: Solve for x
    x = 103,030,077,173,343,856/357,607,851.84
  6. Step 6: Final answer
    x = 288,109,102.31

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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.