Home / 790,193,195.15-1,184,901,934.30-390,890,410.67

Finding the Fourth Proportional to 790,193,195.15, 1,184,901,934.30 and 390,890,410.67

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Solution

The fourth proportional to 790,193,195.15, 1,184,901,934.30 and 390,890,410.67 is: 586,143,751.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,193,195.15 : 1,184,901,934.30 = 390,890,410.67 : x
  2. Step 2: Convert to fraction form
    790,193,195.15/1,184,901,934.30 = 390,890,410.67/x
  3. Step 3: Cross multiply
    790,193,195.15x = 1,184,901,934.30 × 390,890,410.67
  4. Step 4: Simplify right side
    790,193,195.15x = 463,166,803,705,662,400
  5. Step 5: Solve for x
    x = 463,166,803,705,662,400/790,193,195.15
  6. Step 6: Final answer
    x = 586,143,751.36

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Double scale
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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.