Home / 838,692,755.12-1,157,399,509.76-462,341,083.24

Finding the Fourth Proportional to 838,692,755.12, 1,157,399,509.76 and 462,341,083.24

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Solution

The fourth proportional to 838,692,755.12, 1,157,399,509.76 and 462,341,083.24 is: 638,032,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,692,755.12 : 1,157,399,509.76 = 462,341,083.24 : x
  2. Step 2: Convert to fraction form
    838,692,755.12/1,157,399,509.76 = 462,341,083.24/x
  3. Step 3: Cross multiply
    838,692,755.12x = 1,157,399,509.76 × 462,341,083.24
  4. Step 4: Simplify right side
    838,692,755.12x = 535,113,343,083,883,328
  5. Step 5: Solve for x
    x = 535,113,343,083,883,328/838,692,755.12
  6. Step 6: Final answer
    x = 638,032,628.54

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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.