Home / 513,219,430.40-769,829,145.60-416,473,548.80

Finding the Fourth Proportional to 513,219,430.40, 769,829,145.60 and 416,473,548.80

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Solution

The fourth proportional to 513,219,430.40, 769,829,145.60 and 416,473,548.80 is: 624,710,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,219,430.40 : 769,829,145.60 = 416,473,548.80 : x
  2. Step 2: Convert to fraction form
    513,219,430.40/769,829,145.60 = 416,473,548.80/x
  3. Step 3: Cross multiply
    513,219,430.40x = 769,829,145.60 × 416,473,548.80
  4. Step 4: Simplify right side
    513,219,430.40x = 320,613,476,237,703,936
  5. Step 5: Solve for x
    x = 320,613,476,237,703,936/513,219,430.40
  6. Step 6: Final answer
    x = 624,710,323.20

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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.