Home / 808,645,363.35-1,212,968,045.03-776,900,620.95

Finding the Fourth Proportional to 808,645,363.35, 1,212,968,045.03 and 776,900,620.95

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Solution

The fourth proportional to 808,645,363.35, 1,212,968,045.03 and 776,900,620.95 is: 1,165,350,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,645,363.35 : 1,212,968,045.03 = 776,900,620.95 : x
  2. Step 2: Convert to fraction form
    808,645,363.35/1,212,968,045.03 = 776,900,620.95/x
  3. Step 3: Cross multiply
    808,645,363.35x = 1,212,968,045.03 × 776,900,620.95
  4. Step 4: Simplify right side
    808,645,363.35x = 942,355,627,372,430,208
  5. Step 5: Solve for x
    x = 942,355,627,372,430,208/808,645,363.35
  6. Step 6: Final answer
    x = 1,165,350,931.43

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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.