Home / 520,021,803.60-780,032,705.40-174,860,715.60

Finding the Fourth Proportional to 520,021,803.60, 780,032,705.40 and 174,860,715.60

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Solution

The fourth proportional to 520,021,803.60, 780,032,705.40 and 174,860,715.60 is: 262,291,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,021,803.60 : 780,032,705.40 = 174,860,715.60 : x
  2. Step 2: Convert to fraction form
    520,021,803.60/780,032,705.40 = 174,860,715.60/x
  3. Step 3: Cross multiply
    520,021,803.60x = 780,032,705.40 × 174,860,715.60
  4. Step 4: Simplify right side
    520,021,803.60x = 136,397,077,057,647,968
  5. Step 5: Solve for x
    x = 136,397,077,057,647,968/520,021,803.60
  6. Step 6: Final answer
    x = 262,291,073.40

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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.