Home / 872,624,075.09-1,308,927,485.73-399,788,997.26

Finding the Fourth Proportional to 872,624,075.09, 1,308,927,485.73 and 399,788,997.26

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Solution

The fourth proportional to 872,624,075.09, 1,308,927,485.73 and 399,788,997.26 is: 599,679,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,624,075.09 : 1,308,927,485.73 = 399,788,997.26 : x
  2. Step 2: Convert to fraction form
    872,624,075.09/1,308,927,485.73 = 399,788,997.26/x
  3. Step 3: Cross multiply
    872,624,075.09x = 1,308,927,485.73 × 399,788,997.26
  4. Step 4: Simplify right side
    872,624,075.09x = 523,294,807,006,049,664
  5. Step 5: Solve for x
    x = 523,294,807,006,049,664/872,624,075.09
  6. Step 6: Final answer
    x = 599,679,543.51

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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.