Home / 919,908,666.30-1,379,862,999.45-552,576,647.10

Finding the Fourth Proportional to 919,908,666.30, 1,379,862,999.45 and 552,576,647.10

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Solution

The fourth proportional to 919,908,666.30, 1,379,862,999.45 and 552,576,647.10 is: 828,864,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,908,666.30 : 1,379,862,999.45 = 552,576,647.10 : x
  2. Step 2: Convert to fraction form
    919,908,666.30/1,379,862,999.45 = 552,576,647.10/x
  3. Step 3: Cross multiply
    919,908,666.30x = 1,379,862,999.45 × 552,576,647.10
  4. Step 4: Simplify right side
    919,908,666.30x = 762,480,069,693,430,144
  5. Step 5: Solve for x
    x = 762,480,069,693,430,144/919,908,666.30
  6. Step 6: Final answer
    x = 828,864,970.65

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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.