Home / 1,455,453,856.80-2,183,464,220.40-420,348,506.40

Finding the Fourth Proportional to 1,455,453,856.80, 2,183,464,220.40 and 420,348,506.40

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Solution

The fourth proportional to 1,455,453,856.80, 2,183,464,220.40 and 420,348,506.40 is: 630,604,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,453,856.80 : 2,183,464,220.40 = 420,348,506.40 : x
  2. Step 2: Convert to fraction form
    1,455,453,856.80/2,183,464,220.40 = 420,348,506.40/x
  3. Step 3: Cross multiply
    1,455,453,856.80x = 2,183,464,220.40 × 420,348,506.40
  4. Step 4: Simplify right side
    1,455,453,856.80x = 917,815,923,822,980,352
  5. Step 5: Solve for x
    x = 917,815,923,822,980,352/1,455,453,856.80
  6. Step 6: Final answer
    x = 630,604,618.30

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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.