Home / 15,409,285.31-21,254,574.60-9,909,613.32

Finding the Fourth Proportional to 15,409,285.31, 21,254,574.60 and 9,909,613.32

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Solution

The fourth proportional to 15,409,285.31, 21,254,574.60 and 9,909,613.32 is: 13,668,681.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409,285.31 : 21,254,574.60 = 9,909,613.32 : x
  2. Step 2: Convert to fraction form
    15,409,285.31/21,254,574.60 = 9,909,613.32/x
  3. Step 3: Cross multiply
    15,409,285.31x = 21,254,574.60 × 9,909,613.32
  4. Step 4: Simplify right side
    15,409,285.31x = 210,624,615,567,093.69
  5. Step 5: Solve for x
    x = 210,624,615,567,093.69/15,409,285.31
  6. Step 6: Final answer
    x = 13,668,681.66

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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.