Home / 6,457,070-8,910,756.60-3,742,390.64

Finding the Fourth Proportional to 6,457,070, 8,910,756.60 and 3,742,390.64

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Solution

The fourth proportional to 6,457,070, 8,910,756.60 and 3,742,390.64 is: 5,164,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457,070 : 8,910,756.60 = 3,742,390.64 : x
  2. Step 2: Convert to fraction form
    6,457,070/8,910,756.60 = 3,742,390.64/x
  3. Step 3: Cross multiply
    6,457,070x = 8,910,756.60 × 3,742,390.64
  4. Step 4: Simplify right side
    6,457,070x = 33,347,532,095,158.22
  5. Step 5: Solve for x
    x = 33,347,532,095,158.22/6,457,070
  6. Step 6: Final answer
    x = 5,164,499.08

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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.