Home / 990,666,629.10-1,485,999,943.65-253,735,109.10

Finding the Fourth Proportional to 990,666,629.10, 1,485,999,943.65 and 253,735,109.10

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Solution

The fourth proportional to 990,666,629.10, 1,485,999,943.65 and 253,735,109.10 is: 380,602,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,666,629.10 : 1,485,999,943.65 = 253,735,109.10 : x
  2. Step 2: Convert to fraction form
    990,666,629.10/1,485,999,943.65 = 253,735,109.10/x
  3. Step 3: Cross multiply
    990,666,629.10x = 1,485,999,943.65 × 253,735,109.10
  4. Step 4: Simplify right side
    990,666,629.10x = 377,050,357,824,626,624
  5. Step 5: Solve for x
    x = 377,050,357,824,626,624/990,666,629.10
  6. Step 6: Final answer
    x = 380,602,663.65

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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.