Home / 921,940,483.93-1,271,473,813.28-653,485,326.32

Finding the Fourth Proportional to 921,940,483.93, 1,271,473,813.28 and 653,485,326.32

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Solution

The fourth proportional to 921,940,483.93, 1,271,473,813.28 and 653,485,326.32 is: 901,239,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,940,483.93 : 1,271,473,813.28 = 653,485,326.32 : x
  2. Step 2: Convert to fraction form
    921,940,483.93/1,271,473,813.28 = 653,485,326.32/x
  3. Step 3: Cross multiply
    921,940,483.93x = 1,271,473,813.28 × 653,485,326.32
  4. Step 4: Simplify right side
    921,940,483.93x = 830,889,479,783,427,968
  5. Step 5: Solve for x
    x = 830,889,479,783,427,968/921,940,483.93
  6. Step 6: Final answer
    x = 901,239,824.34

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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.