Home / 562,478,821.05-776,210,387.59-311,577,707.73

Finding the Fourth Proportional to 562,478,821.05, 776,210,387.59 and 311,577,707.73

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Solution

The fourth proportional to 562,478,821.05, 776,210,387.59 and 311,577,707.73 is: 429,971,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,478,821.05 : 776,210,387.59 = 311,577,707.73 : x
  2. Step 2: Convert to fraction form
    562,478,821.05/776,210,387.59 = 311,577,707.73/x
  3. Step 3: Cross multiply
    562,478,821.05x = 776,210,387.59 × 311,577,707.73
  4. Step 4: Simplify right side
    562,478,821.05x = 241,849,853,278,677,600
  5. Step 5: Solve for x
    x = 241,849,853,278,677,600/562,478,821.05
  6. Step 6: Final answer
    x = 429,971,483.78

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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.