Home / 380,320,052.21-525,333,999.05-314,506,398.77

Finding the Fourth Proportional to 380,320,052.21, 525,333,999.05 and 314,506,398.77

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Solution

The fourth proportional to 380,320,052.21, 525,333,999.05 and 314,506,398.77 is: 434,425,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,320,052.21 : 525,333,999.05 = 314,506,398.77 : x
  2. Step 2: Convert to fraction form
    380,320,052.21/525,333,999.05 = 314,506,398.77/x
  3. Step 3: Cross multiply
    380,320,052.21x = 525,333,999.05 × 314,506,398.77
  4. Step 4: Simplify right side
    380,320,052.21x = 165,220,904,191,871,840
  5. Step 5: Solve for x
    x = 165,220,904,191,871,840/380,320,052.21
  6. Step 6: Final answer
    x = 434,425,961.06

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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.