Home / 621,630,403.97-931,985,920.40-375,932,415.87

Finding the Fourth Proportional to 621,630,403.97, 931,985,920.40 and 375,932,415.87

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Solution

The fourth proportional to 621,630,403.97, 931,985,920.40 and 375,932,415.87 is: 563,620,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,630,403.97 : 931,985,920.40 = 375,932,415.87 : x
  2. Step 2: Convert to fraction form
    621,630,403.97/931,985,920.40 = 375,932,415.87/x
  3. Step 3: Cross multiply
    621,630,403.97x = 931,985,920.40 × 375,932,415.87
  4. Step 4: Simplify right side
    621,630,403.97x = 350,363,718,610,917,824
  5. Step 5: Solve for x
    x = 350,363,718,610,917,824/621,630,403.97
  6. Step 6: Final answer
    x = 563,620,627.91

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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.