Home / 421,448,543.61-581,586,364.07-233,284,550.25

Finding the Fourth Proportional to 421,448,543.61, 581,586,364.07 and 233,284,550.25

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Solution

The fourth proportional to 421,448,543.61, 581,586,364.07 and 233,284,550.25 is: 321,925,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,448,543.61 : 581,586,364.07 = 233,284,550.25 : x
  2. Step 2: Convert to fraction form
    421,448,543.61/581,586,364.07 = 233,284,550.25/x
  3. Step 3: Cross multiply
    421,448,543.61x = 581,586,364.07 × 233,284,550.25
  4. Step 4: Simplify right side
    421,448,543.61x = 135,675,113,373,851,984
  5. Step 5: Solve for x
    x = 135,675,113,373,851,984/421,448,543.61
  6. Step 6: Final answer
    x = 321,925,690.41

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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.