Home / 354,989,355.25-532,458,779.10-109,320,373.12

Finding the Fourth Proportional to 354,989,355.25, 532,458,779.10 and 109,320,373.12

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Solution

The fourth proportional to 354,989,355.25, 532,458,779.10 and 109,320,373.12 is: 163,972,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989,355.25 : 532,458,779.10 = 109,320,373.12 : x
  2. Step 2: Convert to fraction form
    354,989,355.25/532,458,779.10 = 109,320,373.12/x
  3. Step 3: Cross multiply
    354,989,355.25x = 532,458,779.10 × 109,320,373.12
  4. Step 4: Simplify right side
    354,989,355.25x = 58,208,592,402,231,664
  5. Step 5: Solve for x
    x = 58,208,592,402,231,664/354,989,355.25
  6. Step 6: Final answer
    x = 163,972,782.68

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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.