Home / 196,304,088-270,919,796.32-118,012,987.20

Finding the Fourth Proportional to 196,304,088, 270,919,796.32 and 118,012,987.20

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Solution

The fourth proportional to 196,304,088, 270,919,796.32 and 118,012,987.20 is: 162,870,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,304,088 : 270,919,796.32 = 118,012,987.20 : x
  2. Step 2: Convert to fraction form
    196,304,088/270,919,796.32 = 118,012,987.20/x
  3. Step 3: Cross multiply
    196,304,088x = 270,919,796.32 × 118,012,987.20
  4. Step 4: Simplify right side
    196,304,088x = 31,972,054,455,338,768
  5. Step 5: Solve for x
    x = 31,972,054,455,338,768/196,304,088
  6. Step 6: Final answer
    x = 162,870,038.93

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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.