Home / 511,534,187.42-705,888,194.91-288,502,538.67

Finding the Fourth Proportional to 511,534,187.42, 705,888,194.91 and 288,502,538.67

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Solution

The fourth proportional to 511,534,187.42, 705,888,194.91 and 288,502,538.67 is: 398,117,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,534,187.42 : 705,888,194.91 = 288,502,538.67 : x
  2. Step 2: Convert to fraction form
    511,534,187.42/705,888,194.91 = 288,502,538.67/x
  3. Step 3: Cross multiply
    511,534,187.42x = 705,888,194.91 × 288,502,538.67
  4. Step 4: Simplify right side
    511,534,187.42x = 203,650,536,247,636,896
  5. Step 5: Solve for x
    x = 203,650,536,247,636,896/511,534,187.42
  6. Step 6: Final answer
    x = 398,117,156.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.