Home / 907,456,893.48-1,252,329,013.40-505,570,285.26

Finding the Fourth Proportional to 907,456,893.48, 1,252,329,013.40 and 505,570,285.26

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Solution

The fourth proportional to 907,456,893.48, 1,252,329,013.40 and 505,570,285.26 is: 697,708,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,456,893.48 : 1,252,329,013.40 = 505,570,285.26 : x
  2. Step 2: Convert to fraction form
    907,456,893.48/1,252,329,013.40 = 505,570,285.26/x
  3. Step 3: Cross multiply
    907,456,893.48x = 1,252,329,013.40 × 505,570,285.26
  4. Step 4: Simplify right side
    907,456,893.48x = 633,140,336,541,484,544
  5. Step 5: Solve for x
    x = 633,140,336,541,484,544/907,456,893.48
  6. Step 6: Final answer
    x = 697,708,443.33

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Double scale
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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.