Home / 354,585,290.79-489,458,276.62-213,463,070.59

Finding the Fourth Proportional to 354,585,290.79, 489,458,276.62 and 213,463,070.59

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Solution

The fourth proportional to 354,585,290.79, 489,458,276.62 and 213,463,070.59 is: 294,657,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,585,290.79 : 489,458,276.62 = 213,463,070.59 : x
  2. Step 2: Convert to fraction form
    354,585,290.79/489,458,276.62 = 213,463,070.59/x
  3. Step 3: Cross multiply
    354,585,290.79x = 489,458,276.62 × 213,463,070.59
  4. Step 4: Simplify right side
    354,585,290.79x = 104,481,266,651,927,488
  5. Step 5: Solve for x
    x = 104,481,266,651,927,488/354,585,290.79
  6. Step 6: Final answer
    x = 294,657,644.76

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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.