Home / 1,208,511,154.56-1,805,887,017.60-907,417,211.52

Finding the Fourth Proportional to 1,208,511,154.56, 1,805,887,017.60 and 907,417,211.52

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Solution

The fourth proportional to 1,208,511,154.56, 1,805,887,017.60 and 907,417,211.52 is: 1,355,960,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,511,154.56 : 1,805,887,017.60 = 907,417,211.52 : x
  2. Step 2: Convert to fraction form
    1,208,511,154.56/1,805,887,017.60 = 907,417,211.52/x
  3. Step 3: Cross multiply
    1,208,511,154.56x = 1,805,887,017.60 × 907,417,211.52
  4. Step 4: Simplify right side
    1,208,511,154.56x = 1,638,692,961,830,760,960
  5. Step 5: Solve for x
    x = 1,638,692,961,830,760,960/1,208,511,154.56
  6. Step 6: Final answer
    x = 1,355,960,146.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.