Home / 810,859,348.82-1,118,994,720.70-476,345,970.38

Finding the Fourth Proportional to 810,859,348.82, 1,118,994,720.70 and 476,345,970.38

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Solution

The fourth proportional to 810,859,348.82, 1,118,994,720.70 and 476,345,970.38 is: 657,362,620.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,859,348.82 : 1,118,994,720.70 = 476,345,970.38 : x
  2. Step 2: Convert to fraction form
    810,859,348.82/1,118,994,720.70 = 476,345,970.38/x
  3. Step 3: Cross multiply
    810,859,348.82x = 1,118,994,720.70 × 476,345,970.38
  4. Step 4: Simplify right side
    810,859,348.82x = 533,028,626,081,938,560
  5. Step 5: Solve for x
    x = 533,028,626,081,938,560/810,859,348.82
  6. Step 6: Final answer
    x = 657,362,620.11

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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.