Home / 651,978,611.58-899,736,975-354,627,771.12

Finding the Fourth Proportional to 651,978,611.58, 899,736,975 and 354,627,771.12

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Solution

The fourth proportional to 651,978,611.58, 899,736,975 and 354,627,771.12 is: 489,389,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,978,611.58 : 899,736,975 = 354,627,771.12 : x
  2. Step 2: Convert to fraction form
    651,978,611.58/899,736,975 = 354,627,771.12/x
  3. Step 3: Cross multiply
    651,978,611.58x = 899,736,975 × 354,627,771.12
  4. Step 4: Simplify right side
    651,978,611.58x = 319,071,718,038,501,184
  5. Step 5: Solve for x
    x = 319,071,718,038,501,184/651,978,611.58
  6. Step 6: Final answer
    x = 489,389,854.78

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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.