Home / 547,241,961,211.95-820,999,665,570.15-386,207,789,830.59

Finding the Fourth Proportional to 547,241,961,211.95, 820,999,665,570.15 and 386,207,789,830.59

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Solution

The fourth proportional to 547,241,961,211.95, 820,999,665,570.15 and 386,207,789,830.59 is: 579,408,175,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,241,961,211.95 : 820,999,665,570.15 = 386,207,789,830.59 : x
  2. Step 2: Convert to fraction form
    547,241,961,211.95/820,999,665,570.15 = 386,207,789,830.59/x
  3. Step 3: Cross multiply
    547,241,961,211.95x = 820,999,665,570.15 × 386,207,789,830.59
  4. Step 4: Simplify right side
    547,241,961,211.95x = 317,076,466,291,501,189,562,368
  5. Step 5: Solve for x
    x = 317,076,466,291,501,189,562,368/547,241,961,211.95
  6. Step 6: Final answer
    x = 579,408,175,479.25

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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.