Home / 1,259,754,513.40-1,889,631,770.12-715,558,929.40

Finding the Fourth Proportional to 1,259,754,513.40, 1,889,631,770.12 and 715,558,929.40

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Solution

The fourth proportional to 1,259,754,513.40, 1,889,631,770.12 and 715,558,929.40 is: 1,073,338,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,754,513.40 : 1,889,631,770.12 = 715,558,929.40 : x
  2. Step 2: Convert to fraction form
    1,259,754,513.40/1,889,631,770.12 = 715,558,929.40/x
  3. Step 3: Cross multiply
    1,259,754,513.40x = 1,889,631,770.12 × 715,558,929.40
  4. Step 4: Simplify right side
    1,259,754,513.40x = 1,352,142,886,387,293,952
  5. Step 5: Solve for x
    x = 1,352,142,886,387,293,952/1,259,754,513.40
  6. Step 6: Final answer
    x = 1,073,338,394.11

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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.