Home / 867,110,615.31-1,196,613,534.73-470,633,686.61

Finding the Fourth Proportional to 867,110,615.31, 1,196,613,534.73 and 470,633,686.61

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Solution

The fourth proportional to 867,110,615.31, 1,196,613,534.73 and 470,633,686.61 is: 649,474,968.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,110,615.31 : 1,196,613,534.73 = 470,633,686.61 : x
  2. Step 2: Convert to fraction form
    867,110,615.31/1,196,613,534.73 = 470,633,686.61/x
  3. Step 3: Cross multiply
    867,110,615.31x = 1,196,613,534.73 × 470,633,686.61
  4. Step 4: Simplify right side
    867,110,615.31x = 563,166,639,297,403,200
  5. Step 5: Solve for x
    x = 563,166,639,297,403,200/867,110,615.31
  6. Step 6: Final answer
    x = 649,474,968.19

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1.5x scale

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.