Home / 705,539,705.52-973,594,252.98-388,022,308.50

Finding the Fourth Proportional to 705,539,705.52, 973,594,252.98 and 388,022,308.50

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Solution

The fourth proportional to 705,539,705.52, 973,594,252.98 and 388,022,308.50 is: 535,442,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,539,705.52 : 973,594,252.98 = 388,022,308.50 : x
  2. Step 2: Convert to fraction form
    705,539,705.52/973,594,252.98 = 388,022,308.50/x
  3. Step 3: Cross multiply
    705,539,705.52x = 973,594,252.98 × 388,022,308.50
  4. Step 4: Simplify right side
    705,539,705.52x = 377,776,289,583,632,640
  5. Step 5: Solve for x
    x = 377,776,289,583,632,640/705,539,705.52
  6. Step 6: Final answer
    x = 535,442,990.14

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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.