Home / 562,986,280.51-776,921,054.75-312,090,036.57

Finding the Fourth Proportional to 562,986,280.51, 776,921,054.75 and 312,090,036.57

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Solution

The fourth proportional to 562,986,280.51, 776,921,054.75 and 312,090,036.57 is: 430,684,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,986,280.51 : 776,921,054.75 = 312,090,036.57 : x
  2. Step 2: Convert to fraction form
    562,986,280.51/776,921,054.75 = 312,090,036.57/x
  3. Step 3: Cross multiply
    562,986,280.51x = 776,921,054.75 × 312,090,036.57
  4. Step 4: Simplify right side
    562,986,280.51x = 242,469,320,389,710,720
  5. Step 5: Solve for x
    x = 242,469,320,389,710,720/562,986,280.51
  6. Step 6: Final answer
    x = 430,684,243.62

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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.