Home / 838,538,340.89-1,157,130,264.76-462,174,217.49

Finding the Fourth Proportional to 838,538,340.89, 1,157,130,264.76 and 462,174,217.49

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Solution

The fourth proportional to 838,538,340.89, 1,157,130,264.76 and 462,174,217.49 is: 637,771,403.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,538,340.89 : 1,157,130,264.76 = 462,174,217.49 : x
  2. Step 2: Convert to fraction form
    838,538,340.89/1,157,130,264.76 = 462,174,217.49/x
  3. Step 3: Cross multiply
    838,538,340.89x = 1,157,130,264.76 × 462,174,217.49
  4. Step 4: Simplify right side
    838,538,340.89x = 534,795,774,651,186,880
  5. Step 5: Solve for x
    x = 534,795,774,651,186,880/838,538,340.89
  6. Step 6: Final answer
    x = 637,771,403.61

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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.