Home / 304,490,631.36-420,186,384.72-165,258,590.88

Finding the Fourth Proportional to 304,490,631.36, 420,186,384.72 and 165,258,590.88

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Solution

The fourth proportional to 304,490,631.36, 420,186,384.72 and 165,258,590.88 is: 228,051,055.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,490,631.36 : 420,186,384.72 = 165,258,590.88 : x
  2. Step 2: Convert to fraction form
    304,490,631.36/420,186,384.72 = 165,258,590.88/x
  3. Step 3: Cross multiply
    304,490,631.36x = 420,186,384.72 × 165,258,590.88
  4. Step 4: Simplify right side
    304,490,631.36x = 69,439,409,845,788,768
  5. Step 5: Solve for x
    x = 69,439,409,845,788,768/304,490,631.36
  6. Step 6: Final answer
    x = 228,051,055.42

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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.