Home / 153,405,066.35-211,697,594.07-83,790,428.78

Finding the Fourth Proportional to 153,405,066.35, 211,697,594.07 and 83,790,428.78

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Solution

The fourth proportional to 153,405,066.35, 211,697,594.07 and 83,790,428.78 is: 115,630,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,066.35 : 211,697,594.07 = 83,790,428.78 : x
  2. Step 2: Convert to fraction form
    153,405,066.35/211,697,594.07 = 83,790,428.78/x
  3. Step 3: Cross multiply
    153,405,066.35x = 211,697,594.07 × 83,790,428.78
  4. Step 4: Simplify right side
    153,405,066.35x = 17,738,232,178,819,684
  5. Step 5: Solve for x
    x = 17,738,232,178,819,684/153,405,066.35
  6. Step 6: Final answer
    x = 115,630,028.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.