Home / 862,203,946.16-1,189,841,262.37-465,726,939.64

Finding the Fourth Proportional to 862,203,946.16, 1,189,841,262.37 and 465,726,939.64

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Solution

The fourth proportional to 862,203,946.16, 1,189,841,262.37 and 465,726,939.64 is: 642,703,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,203,946.16 : 1,189,841,262.37 = 465,726,939.64 : x
  2. Step 2: Convert to fraction form
    862,203,946.16/1,189,841,262.37 = 465,726,939.64/x
  3. Step 3: Cross multiply
    862,203,946.16x = 1,189,841,262.37 × 465,726,939.64
  4. Step 4: Simplify right side
    862,203,946.16x = 554,141,129,776,835,520
  5. Step 5: Solve for x
    x = 554,141,129,776,835,520/862,203,946.16
  6. Step 6: Final answer
    x = 642,703,077.67

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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.