Home / 995,731,201.80-1,493,596,802.70-421,227,880.20

Finding the Fourth Proportional to 995,731,201.80, 1,493,596,802.70 and 421,227,880.20

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Solution

The fourth proportional to 995,731,201.80, 1,493,596,802.70 and 421,227,880.20 is: 631,841,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,731,201.80 : 1,493,596,802.70 = 421,227,880.20 : x
  2. Step 2: Convert to fraction form
    995,731,201.80/1,493,596,802.70 = 421,227,880.20/x
  3. Step 3: Cross multiply
    995,731,201.80x = 1,493,596,802.70 × 421,227,880.20
  4. Step 4: Simplify right side
    995,731,201.80x = 629,144,615,074,818,688
  5. Step 5: Solve for x
    x = 629,144,615,074,818,688/995,731,201.80
  6. Step 6: Final answer
    x = 631,841,820.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.