Home / 1,257,841,641.60-1,886,762,462.40-384,441,321.60

Finding the Fourth Proportional to 1,257,841,641.60, 1,886,762,462.40 and 384,441,321.60

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Solution

The fourth proportional to 1,257,841,641.60, 1,886,762,462.40 and 384,441,321.60 is: 576,661,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,841,641.60 : 1,886,762,462.40 = 384,441,321.60 : x
  2. Step 2: Convert to fraction form
    1,257,841,641.60/1,886,762,462.40 = 384,441,321.60/x
  3. Step 3: Cross multiply
    1,257,841,641.60x = 1,886,762,462.40 × 384,441,321.60
  4. Step 4: Simplify right side
    1,257,841,641.60x = 725,349,454,590,326,400
  5. Step 5: Solve for x
    x = 725,349,454,590,326,400/1,257,841,641.60
  6. Step 6: Final answer
    x = 576,661,982.40

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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.