Home / 1,455,445,091.80-2,183,167,637.70-420,339,741.40

Finding the Fourth Proportional to 1,455,445,091.80, 2,183,167,637.70 and 420,339,741.40

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Solution

The fourth proportional to 1,455,445,091.80, 2,183,167,637.70 and 420,339,741.40 is: 630,509,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,445,091.80 : 2,183,167,637.70 = 420,339,741.40 : x
  2. Step 2: Convert to fraction form
    1,455,445,091.80/2,183,167,637.70 = 420,339,741.40/x
  3. Step 3: Cross multiply
    1,455,445,091.80x = 2,183,167,637.70 × 420,339,741.40
  4. Step 4: Simplify right side
    1,455,445,091.80x = 917,672,120,263,666,816
  5. Step 5: Solve for x
    x = 917,672,120,263,666,816/1,455,445,091.80
  6. Step 6: Final answer
    x = 630,509,612.10

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1.5x scale

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.