Home / 258,767,070.80-388,038,631.80-105,362,142.80

Finding the Fourth Proportional to 258,767,070.80, 388,038,631.80 and 105,362,142.80

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Solution

The fourth proportional to 258,767,070.80, 388,038,631.80 and 105,362,142.80 is: 157,997,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,767,070.80 : 388,038,631.80 = 105,362,142.80 : x
  2. Step 2: Convert to fraction form
    258,767,070.80/388,038,631.80 = 105,362,142.80/x
  3. Step 3: Cross multiply
    258,767,070.80x = 388,038,631.80 × 105,362,142.80
  4. Step 4: Simplify right side
    258,767,070.80x = 40,884,581,735,628,224
  5. Step 5: Solve for x
    x = 40,884,581,735,628,224/258,767,070.80
  6. Step 6: Final answer
    x = 157,997,621.60

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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.