Home / 841,326,292.54-1,261,987,742.67-790,129,045.36

Finding the Fourth Proportional to 841,326,292.54, 1,261,987,742.67 and 790,129,045.36

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Solution

The fourth proportional to 841,326,292.54, 1,261,987,742.67 and 790,129,045.36 is: 1,185,191,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,326,292.54 : 1,261,987,742.67 = 790,129,045.36 : x
  2. Step 2: Convert to fraction form
    841,326,292.54/1,261,987,742.67 = 790,129,045.36/x
  3. Step 3: Cross multiply
    841,326,292.54x = 1,261,987,742.67 × 790,129,045.36
  4. Step 4: Simplify right side
    841,326,292.54x = 997,133,170,371,868,544
  5. Step 5: Solve for x
    x = 997,133,170,371,868,544/841,326,292.54
  6. Step 6: Final answer
    x = 1,185,191,975.12

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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.