Home / 5,302,038.78-7,316,364.60-2,978,749.26

Finding the Fourth Proportional to 5,302,038.78, 7,316,364.60 and 2,978,749.26

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Solution

The fourth proportional to 5,302,038.78, 7,316,364.60 and 2,978,749.26 is: 4,110,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302,038.78 : 7,316,364.60 = 2,978,749.26 : x
  2. Step 2: Convert to fraction form
    5,302,038.78/7,316,364.60 = 2,978,749.26/x
  3. Step 3: Cross multiply
    5,302,038.78x = 7,316,364.60 × 2,978,749.26
  4. Step 4: Simplify right side
    5,302,038.78x = 21,793,615,638,140.19
  5. Step 5: Solve for x
    x = 21,793,615,638,140.19/5,302,038.78
  6. Step 6: Final answer
    x = 4,110,421.77

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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.