Home / 505,521,855.40-758,282,783.10-246,603,800.20

Finding the Fourth Proportional to 505,521,855.40, 758,282,783.10 and 246,603,800.20

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Solution

The fourth proportional to 505,521,855.40, 758,282,783.10 and 246,603,800.20 is: 369,905,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,521,855.40 : 758,282,783.10 = 246,603,800.20 : x
  2. Step 2: Convert to fraction form
    505,521,855.40/758,282,783.10 = 246,603,800.20/x
  3. Step 3: Cross multiply
    505,521,855.40x = 758,282,783.10 × 246,603,800.20
  4. Step 4: Simplify right side
    505,521,855.40x = 186,995,415,938,692,320
  5. Step 5: Solve for x
    x = 186,995,415,938,692,320/505,521,855.40
  6. Step 6: Final answer
    x = 369,905,700.30

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1.5x scale

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.