Home / 56,886,336.72-78,502,554.54-30,780,278.10

Finding the Fourth Proportional to 56,886,336.72, 78,502,554.54 and 30,780,278.10

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Solution

The fourth proportional to 56,886,336.72, 78,502,554.54 and 30,780,278.10 is: 42,476,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886,336.72 : 78,502,554.54 = 30,780,278.10 : x
  2. Step 2: Convert to fraction form
    56,886,336.72/78,502,554.54 = 30,780,278.10/x
  3. Step 3: Cross multiply
    56,886,336.72x = 78,502,554.54 × 30,780,278.10
  4. Step 4: Simplify right side
    56,886,336.72x = 2,416,330,460,301,618
  5. Step 5: Solve for x
    x = 2,416,330,460,301,618/56,886,336.72
  6. Step 6: Final answer
    x = 42,476,464.47

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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.