Home / 336,870,897.40-505,306,346.10-287,553,172.60

Finding the Fourth Proportional to 336,870,897.40, 505,306,346.10 and 287,553,172.60

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Solution

The fourth proportional to 336,870,897.40, 505,306,346.10 and 287,553,172.60 is: 431,329,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,870,897.40 : 505,306,346.10 = 287,553,172.60 : x
  2. Step 2: Convert to fraction form
    336,870,897.40/505,306,346.10 = 287,553,172.60/x
  3. Step 3: Cross multiply
    336,870,897.40x = 505,306,346.10 × 287,553,172.60
  4. Step 4: Simplify right side
    336,870,897.40x = 145,302,442,955,968,640
  5. Step 5: Solve for x
    x = 145,302,442,955,968,640/336,870,897.40
  6. Step 6: Final answer
    x = 431,329,758.90

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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.