Home / 428,330,973.04-591,277,550.40-289,290,064.36

Finding the Fourth Proportional to 428,330,973.04, 591,277,550.40 and 289,290,064.36

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Solution

The fourth proportional to 428,330,973.04, 591,277,550.40 and 289,290,064.36 is: 399,342,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,330,973.04 : 591,277,550.40 = 289,290,064.36 : x
  2. Step 2: Convert to fraction form
    428,330,973.04/591,277,550.40 = 289,290,064.36/x
  3. Step 3: Cross multiply
    428,330,973.04x = 591,277,550.40 × 289,290,064.36
  4. Step 4: Simplify right side
    428,330,973.04x = 171,050,720,609,839,136
  5. Step 5: Solve for x
    x = 171,050,720,609,839,136/428,330,973.04
  6. Step 6: Final answer
    x = 399,342,404.30

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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.