Home / 1,213,127,665,390.80-1,674,168,802,855.10-671,804,387,135.50

Finding the Fourth Proportional to 1,213,127,665,390.80, 1,674,168,802,855.10 and 671,804,387,135.50

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Solution

The fourth proportional to 1,213,127,665,390.80, 1,674,168,802,855.10 and 671,804,387,135.50 is: 927,119,196,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,127,665,390.80 : 1,674,168,802,855.10 = 671,804,387,135.50 : x
  2. Step 2: Convert to fraction form
    1,213,127,665,390.80/1,674,168,802,855.10 = 671,804,387,135.50/x
  3. Step 3: Cross multiply
    1,213,127,665,390.80x = 1,674,168,802,855.10 × 671,804,387,135.50
  4. Step 4: Simplify right side
    1,213,127,665,390.80x = 1,124,713,946,563,444,251,557,888
  5. Step 5: Solve for x
    x = 1,124,713,946,563,444,251,557,888/1,213,127,665,390.80
  6. Step 6: Final answer
    x = 927,119,196,643.77

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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.