Home / 1,328,549,063.60-1,992,813,097.80-345,973,703.60

Finding the Fourth Proportional to 1,328,549,063.60, 1,992,813,097.80 and 345,973,703.60

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Solution

The fourth proportional to 1,328,549,063.60, 1,992,813,097.80 and 345,973,703.60 is: 518,957,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,549,063.60 : 1,992,813,097.80 = 345,973,703.60 : x
  2. Step 2: Convert to fraction form
    1,328,549,063.60/1,992,813,097.80 = 345,973,703.60/x
  3. Step 3: Cross multiply
    1,328,549,063.60x = 1,992,813,097.80 × 345,973,703.60
  4. Step 4: Simplify right side
    1,328,549,063.60x = 689,460,928,028,455,040
  5. Step 5: Solve for x
    x = 689,460,928,028,455,040/1,328,549,063.60
  6. Step 6: Final answer
    x = 518,957,821.67

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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.