Home / 388,359,561.68-535,952,485.32-223,347,263.12

Finding the Fourth Proportional to 388,359,561.68, 535,952,485.32 and 223,347,263.12

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Solution

The fourth proportional to 388,359,561.68, 535,952,485.32 and 223,347,263.12 is: 308,228,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,359,561.68 : 535,952,485.32 = 223,347,263.12 : x
  2. Step 2: Convert to fraction form
    388,359,561.68/535,952,485.32 = 223,347,263.12/x
  3. Step 3: Cross multiply
    388,359,561.68x = 535,952,485.32 × 223,347,263.12
  4. Step 4: Simplify right side
    388,359,561.68x = 119,703,520,758,583,984
  5. Step 5: Solve for x
    x = 119,703,520,758,583,984/388,359,561.68
  6. Step 6: Final answer
    x = 308,228,591.67

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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.