Home / 786,087,424.16-1,084,605,623.52-518,133,560.48

Finding the Fourth Proportional to 786,087,424.16, 1,084,605,623.52 and 518,133,560.48

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Solution

The fourth proportional to 786,087,424.16, 1,084,605,623.52 and 518,133,560.48 is: 714,895,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,087,424.16 : 1,084,605,623.52 = 518,133,560.48 : x
  2. Step 2: Convert to fraction form
    786,087,424.16/1,084,605,623.52 = 518,133,560.48/x
  3. Step 3: Cross multiply
    786,087,424.16x = 1,084,605,623.52 × 518,133,560.48
  4. Step 4: Simplify right side
    786,087,424.16x = 561,970,573,431,048,064
  5. Step 5: Solve for x
    x = 561,970,573,431,048,064/786,087,424.16
  6. Step 6: Final answer
    x = 714,895,768.79

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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.