Home / 623,038,425.76-860,057,764.26-388,205,112.22

Finding the Fourth Proportional to 623,038,425.76, 860,057,764.26 and 388,205,112.22

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Solution

The fourth proportional to 623,038,425.76, 860,057,764.26 and 388,205,112.22 is: 535,888,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,038,425.76 : 860,057,764.26 = 388,205,112.22 : x
  2. Step 2: Convert to fraction form
    623,038,425.76/860,057,764.26 = 388,205,112.22/x
  3. Step 3: Cross multiply
    623,038,425.76x = 860,057,764.26 × 388,205,112.22
  4. Step 4: Simplify right side
    623,038,425.76x = 333,878,820,890,235,648
  5. Step 5: Solve for x
    x = 333,878,820,890,235,648/623,038,425.76
  6. Step 6: Final answer
    x = 535,888,008.00

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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.