Home / 958,847,430.60-1,438,271,145.90-648,911,039.40

Finding the Fourth Proportional to 958,847,430.60, 1,438,271,145.90 and 648,911,039.40

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Solution

The fourth proportional to 958,847,430.60, 1,438,271,145.90 and 648,911,039.40 is: 973,366,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,847,430.60 : 1,438,271,145.90 = 648,911,039.40 : x
  2. Step 2: Convert to fraction form
    958,847,430.60/1,438,271,145.90 = 648,911,039.40/x
  3. Step 3: Cross multiply
    958,847,430.60x = 1,438,271,145.90 × 648,911,039.40
  4. Step 4: Simplify right side
    958,847,430.60x = 933,310,024,224,998,016
  5. Step 5: Solve for x
    x = 933,310,024,224,998,016/958,847,430.60
  6. Step 6: Final answer
    x = 973,366,559.10

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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.