Home / 602,009,999.85-902,798,136.86-208,429,967.64

Finding the Fourth Proportional to 602,009,999.85, 902,798,136.86 and 208,429,967.64

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Solution

The fourth proportional to 602,009,999.85, 902,798,136.86 and 208,429,967.64 is: 312,569,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,009,999.85 : 902,798,136.86 = 208,429,967.64 : x
  2. Step 2: Convert to fraction form
    602,009,999.85/902,798,136.86 = 208,429,967.64/x
  3. Step 3: Cross multiply
    602,009,999.85x = 902,798,136.86 × 208,429,967.64
  4. Step 4: Simplify right side
    602,009,999.85x = 188,170,186,450,139,936
  5. Step 5: Solve for x
    x = 188,170,186,450,139,936/602,009,999.85
  6. Step 6: Final answer
    x = 312,569,868.44

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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.