Home / 869,163,804.80-1,303,745,707.20-665,090,460.80

Finding the Fourth Proportional to 869,163,804.80, 1,303,745,707.20 and 665,090,460.80

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Solution

The fourth proportional to 869,163,804.80, 1,303,745,707.20 and 665,090,460.80 is: 997,635,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,163,804.80 : 1,303,745,707.20 = 665,090,460.80 : x
  2. Step 2: Convert to fraction form
    869,163,804.80/1,303,745,707.20 = 665,090,460.80/x
  3. Step 3: Cross multiply
    869,163,804.80x = 1,303,745,707.20 × 665,090,460.80
  4. Step 4: Simplify right side
    869,163,804.80x = 867,108,833,167,669,888
  5. Step 5: Solve for x
    x = 867,108,833,167,669,888/869,163,804.80
  6. Step 6: Final answer
    x = 997,635,691.20

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.