Home / 607,391,999.10-911,087,998.65-400,767,738.30

Finding the Fourth Proportional to 607,391,999.10, 911,087,998.65 and 400,767,738.30

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Solution

The fourth proportional to 607,391,999.10, 911,087,998.65 and 400,767,738.30 is: 601,151,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,391,999.10 : 911,087,998.65 = 400,767,738.30 : x
  2. Step 2: Convert to fraction form
    607,391,999.10/911,087,998.65 = 400,767,738.30/x
  3. Step 3: Cross multiply
    607,391,999.10x = 911,087,998.65 × 400,767,738.30
  4. Step 4: Simplify right side
    607,391,999.10x = 365,134,676,611,233,984
  5. Step 5: Solve for x
    x = 365,134,676,611,233,984/607,391,999.10
  6. Step 6: Final answer
    x = 601,151,607.45

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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.