Home / 1,187,305,476.04-1,638,483,484.48-658,669,475.80

Finding the Fourth Proportional to 1,187,305,476.04, 1,638,483,484.48 and 658,669,475.80

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Solution

The fourth proportional to 1,187,305,476.04, 1,638,483,484.48 and 658,669,475.80 is: 908,964,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,305,476.04 : 1,638,483,484.48 = 658,669,475.80 : x
  2. Step 2: Convert to fraction form
    1,187,305,476.04/1,638,483,484.48 = 658,669,475.80/x
  3. Step 3: Cross multiply
    1,187,305,476.04x = 1,638,483,484.48 × 658,669,475.80
  4. Step 4: Simplify right side
    1,187,305,476.04x = 1,079,219,057,829,398,912
  5. Step 5: Solve for x
    x = 1,079,219,057,829,398,912/1,187,305,476.04
  6. Step 6: Final answer
    x = 908,964,945.93

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Find fourth proportional to 1,187,305,477.04, 1,638,483,485.86 and 658,669,476.80
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1.5x scale

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.