Home / 686,629,295.76-947,553,357.42-373,361,264.94

Finding the Fourth Proportional to 686,629,295.76, 947,553,357.42 and 373,361,264.94

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Solution

The fourth proportional to 686,629,295.76, 947,553,357.42 and 373,361,264.94 is: 515,241,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,629,295.76 : 947,553,357.42 = 373,361,264.94 : x
  2. Step 2: Convert to fraction form
    686,629,295.76/947,553,357.42 = 373,361,264.94/x
  3. Step 3: Cross multiply
    686,629,295.76x = 947,553,357.42 × 373,361,264.94
  4. Step 4: Simplify right side
    686,629,295.76x = 353,779,720,124,475,136
  5. Step 5: Solve for x
    x = 353,779,720,124,475,136/686,629,295.76
  6. Step 6: Final answer
    x = 515,241,225.96

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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.