Home / 562,478,821.61-776,210,388.37-311,577,708.29

Finding the Fourth Proportional to 562,478,821.61, 776,210,388.37 and 311,577,708.29

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Solution

The fourth proportional to 562,478,821.61, 776,210,388.37 and 311,577,708.29 is: 429,971,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,478,821.61 : 776,210,388.37 = 311,577,708.29 : x
  2. Step 2: Convert to fraction form
    562,478,821.61/776,210,388.37 = 311,577,708.29/x
  3. Step 3: Cross multiply
    562,478,821.61x = 776,210,388.37 × 311,577,708.29
  4. Step 4: Simplify right side
    562,478,821.61x = 241,849,853,958,917,792
  5. Step 5: Solve for x
    x = 241,849,853,958,917,792/562,478,821.61
  6. Step 6: Final answer
    x = 429,971,484.56

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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.