Home / 1,433,172,899,072-1,977,778,525,071.20-773,978,911,981.88

Finding the Fourth Proportional to 1,433,172,899,072, 1,977,778,525,071.20 and 773,978,911,981.88

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Solution

The fourth proportional to 1,433,172,899,072, 1,977,778,525,071.20 and 773,978,911,981.88 is: 1,068,090,857,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,172,899,072 : 1,977,778,525,071.20 = 773,978,911,981.88 : x
  2. Step 2: Convert to fraction form
    1,433,172,899,072/1,977,778,525,071.20 = 773,978,911,981.88/x
  3. Step 3: Cross multiply
    1,433,172,899,072x = 1,977,778,525,071.20 × 773,978,911,981.88
  4. Step 4: Simplify right side
    1,433,172,899,072x = 1,530,758,870,975,734,614,065,152
  5. Step 5: Solve for x
    x = 1,530,758,870,975,734,614,065,152/1,433,172,899,072
  6. Step 6: Final answer
    x = 1,068,090,857,681.53

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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.