Home / 786,783,473.08-1,085,903,315.22-469,264,072.36

Finding the Fourth Proportional to 786,783,473.08, 1,085,903,315.22 and 469,264,072.36

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Solution

The fourth proportional to 786,783,473.08, 1,085,903,315.22 and 469,264,072.36 is: 647,669,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,783,473.08 : 1,085,903,315.22 = 469,264,072.36 : x
  2. Step 2: Convert to fraction form
    786,783,473.08/1,085,903,315.22 = 469,264,072.36/x
  3. Step 3: Cross multiply
    786,783,473.08x = 1,085,903,315.22 × 469,264,072.36
  4. Step 4: Simplify right side
    786,783,473.08x = 509,575,411,889,361,984
  5. Step 5: Solve for x
    x = 509,575,411,889,361,984/786,783,473.08
  6. Step 6: Final answer
    x = 647,669,186.41

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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.