Home / 429,027,798.26-643,547,676.81-122,319,911.54

Finding the Fourth Proportional to 429,027,798.26, 643,547,676.81 and 122,319,911.54

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Solution

The fourth proportional to 429,027,798.26, 643,547,676.81 and 122,319,911.54 is: 183,481,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,027,798.26 : 643,547,676.81 = 122,319,911.54 : x
  2. Step 2: Convert to fraction form
    429,027,798.26/643,547,676.81 = 122,319,911.54/x
  3. Step 3: Cross multiply
    429,027,798.26x = 643,547,676.81 × 122,319,911.54
  4. Step 4: Simplify right side
    429,027,798.26x = 78,718,694,899,171,712
  5. Step 5: Solve for x
    x = 78,718,694,899,171,712/429,027,798.26
  6. Step 6: Final answer
    x = 183,481,572.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.