Home / 1,206,447,776.60-1,809,671,664.90-430,969,069.40

Finding the Fourth Proportional to 1,206,447,776.60, 1,809,671,664.90 and 430,969,069.40

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Solution

The fourth proportional to 1,206,447,776.60, 1,809,671,664.90 and 430,969,069.40 is: 646,453,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,447,776.60 : 1,809,671,664.90 = 430,969,069.40 : x
  2. Step 2: Convert to fraction form
    1,206,447,776.60/1,809,671,664.90 = 430,969,069.40/x
  3. Step 3: Cross multiply
    1,206,447,776.60x = 1,809,671,664.90 × 430,969,069.40
  4. Step 4: Simplify right side
    1,206,447,776.60x = 779,912,513,341,501,696
  5. Step 5: Solve for x
    x = 779,912,513,341,501,696/1,206,447,776.60
  6. Step 6: Final answer
    x = 646,453,604.10

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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.