Home / 6,457,480-8,911,322.40-3,742,800.64

Finding the Fourth Proportional to 6,457,480, 8,911,322.40 and 3,742,800.64

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Solution

The fourth proportional to 6,457,480, 8,911,322.40 and 3,742,800.64 is: 5,165,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457,480 : 8,911,322.40 = 3,742,800.64 : x
  2. Step 2: Convert to fraction form
    6,457,480/8,911,322.40 = 3,742,800.64/x
  3. Step 3: Cross multiply
    6,457,480x = 8,911,322.40 × 3,742,800.64
  4. Step 4: Simplify right side
    6,457,480x = 33,353,303,181,966.34
  5. Step 5: Solve for x
    x = 33,353,303,181,966.34/6,457,480
  6. Step 6: Final answer
    x = 5,165,064.88

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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.