Home / 789,473,347.61-1,089,430,057.76-432,172,003.91

Finding the Fourth Proportional to 789,473,347.61, 1,089,430,057.76 and 432,172,003.91

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Solution

The fourth proportional to 789,473,347.61, 1,089,430,057.76 and 432,172,003.91 is: 596,373,737.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,473,347.61 : 1,089,430,057.76 = 432,172,003.91 : x
  2. Step 2: Convert to fraction form
    789,473,347.61/1,089,430,057.76 = 432,172,003.91/x
  3. Step 3: Cross multiply
    789,473,347.61x = 1,089,430,057.76 × 432,172,003.91
  4. Step 4: Simplify right side
    789,473,347.61x = 470,821,171,177,559,488
  5. Step 5: Solve for x
    x = 470,821,171,177,559,488/789,473,347.61
  6. Step 6: Final answer
    x = 596,373,737.77

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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.