Home / 455,005,138,050.78-627,669,033,931.75-281,334,761,888.15

Finding the Fourth Proportional to 455,005,138,050.78, 627,669,033,931.75 and 281,334,761,888.15

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Solution

The fourth proportional to 455,005,138,050.78, 627,669,033,931.75 and 281,334,761,888.15 is: 388,094,778,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,005,138,050.78 : 627,669,033,931.75 = 281,334,761,888.15 : x
  2. Step 2: Convert to fraction form
    455,005,138,050.78/627,669,033,931.75 = 281,334,761,888.15/x
  3. Step 3: Cross multiply
    455,005,138,050.78x = 627,669,033,931.75 × 281,334,761,888.15
  4. Step 4: Simplify right side
    455,005,138,050.78x = 176,585,118,205,754,048,774,144
  5. Step 5: Solve for x
    x = 176,585,118,205,754,048,774,144/455,005,138,050.78
  6. Step 6: Final answer
    x = 388,094,778,362.80

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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.