Home / 385,365,094.86-531,804,356.07-209,153,092.50

Finding the Fourth Proportional to 385,365,094.86, 531,804,356.07 and 209,153,092.50

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Solution

The fourth proportional to 385,365,094.86, 531,804,356.07 and 209,153,092.50 is: 288,631,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,365,094.86 : 531,804,356.07 = 209,153,092.50 : x
  2. Step 2: Convert to fraction form
    385,365,094.86/531,804,356.07 = 209,153,092.50/x
  3. Step 3: Cross multiply
    385,365,094.86x = 531,804,356.07 × 209,153,092.50
  4. Step 4: Simplify right side
    385,365,094.86x = 111,228,525,677,011,648
  5. Step 5: Solve for x
    x = 111,228,525,677,011,648/385,365,094.86
  6. Step 6: Final answer
    x = 288,631,552.68

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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.