Home / 1,236,507,639.40-1,854,985,407.90-621,544,234.60

Finding the Fourth Proportional to 1,236,507,639.40, 1,854,985,407.90 and 621,544,234.60

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Solution

The fourth proportional to 1,236,507,639.40, 1,854,985,407.90 and 621,544,234.60 is: 932,428,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,507,639.40 : 1,854,985,407.90 = 621,544,234.60 : x
  2. Step 2: Convert to fraction form
    1,236,507,639.40/1,854,985,407.90 = 621,544,234.60/x
  3. Step 3: Cross multiply
    1,236,507,639.40x = 1,854,985,407.90 × 621,544,234.60
  4. Step 4: Simplify right side
    1,236,507,639.40x = 1,152,955,485,547,374,336
  5. Step 5: Solve for x
    x = 1,152,955,485,547,374,336/1,236,507,639.40
  6. Step 6: Final answer
    x = 932,428,922.24

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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.