Home / 680,484,741.31-939,032,511.69-374,948,290.36

Finding the Fourth Proportional to 680,484,741.31, 939,032,511.69 and 374,948,290.36

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Solution

The fourth proportional to 680,484,741.31, 939,032,511.69 and 374,948,290.36 is: 517,408,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,484,741.31 : 939,032,511.69 = 374,948,290.36 : x
  2. Step 2: Convert to fraction form
    680,484,741.31/939,032,511.69 = 374,948,290.36/x
  3. Step 3: Cross multiply
    680,484,741.31x = 939,032,511.69 × 374,948,290.36
  4. Step 4: Simplify right side
    680,484,741.31x = 352,088,634,853,202,048
  5. Step 5: Solve for x
    x = 352,088,634,853,202,048/680,484,741.31
  6. Step 6: Final answer
    x = 517,408,566.98

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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.