Home / 651,978,920.16-899,737,400.88-354,628,080

Finding the Fourth Proportional to 651,978,920.16, 899,737,400.88 and 354,628,080

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Solution

The fourth proportional to 651,978,920.16, 899,737,400.88 and 354,628,080 is: 489,390,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,978,920.16 : 899,737,400.88 = 354,628,080 : x
  2. Step 2: Convert to fraction form
    651,978,920.16/899,737,400.88 = 354,628,080/x
  3. Step 3: Cross multiply
    651,978,920.16x = 899,737,400.88 × 354,628,080
  4. Step 4: Simplify right side
    651,978,920.16x = 319,072,146,978,264,704
  5. Step 5: Solve for x
    x = 319,072,146,978,264,704/651,978,920.16
  6. Step 6: Final answer
    x = 489,390,281.05

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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.