Home / 708,589,038.70-1,062,883,558.05-320,424,532.30

Finding the Fourth Proportional to 708,589,038.70, 1,062,883,558.05 and 320,424,532.30

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Solution

The fourth proportional to 708,589,038.70, 1,062,883,558.05 and 320,424,532.30 is: 480,636,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,589,038.70 : 1,062,883,558.05 = 320,424,532.30 : x
  2. Step 2: Convert to fraction form
    708,589,038.70/1,062,883,558.05 = 320,424,532.30/x
  3. Step 3: Cross multiply
    708,589,038.70x = 1,062,883,558.05 × 320,424,532.30
  4. Step 4: Simplify right side
    708,589,038.70x = 340,573,966,977,531,136
  5. Step 5: Solve for x
    x = 340,573,966,977,531,136/708,589,038.70
  6. Step 6: Final answer
    x = 480,636,798.45

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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.