Home / 1,270,263,828.49-1,905,184,405.59-384,738,650.67

Finding the Fourth Proportional to 1,270,263,828.49, 1,905,184,405.59 and 384,738,650.67

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Solution

The fourth proportional to 1,270,263,828.49, 1,905,184,405.59 and 384,738,650.67 is: 577,043,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,263,828.49 : 1,905,184,405.59 = 384,738,650.67 : x
  2. Step 2: Convert to fraction form
    1,270,263,828.49/1,905,184,405.59 = 384,738,650.67/x
  3. Step 3: Cross multiply
    1,270,263,828.49x = 1,905,184,405.59 × 384,738,650.67
  4. Step 4: Simplify right side
    1,270,263,828.49x = 732,998,077,489,911,808
  5. Step 5: Solve for x
    x = 732,998,077,489,911,808/1,270,263,828.49
  6. Step 6: Final answer
    x = 577,043,966.03

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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.