Home / 1,206,447,713.60-1,809,671,570.40-430,969,006.40

Finding the Fourth Proportional to 1,206,447,713.60, 1,809,671,570.40 and 430,969,006.40

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Solution

The fourth proportional to 1,206,447,713.60, 1,809,671,570.40 and 430,969,006.40 is: 646,453,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,447,713.60 : 1,809,671,570.40 = 430,969,006.40 : x
  2. Step 2: Convert to fraction form
    1,206,447,713.60/1,809,671,570.40 = 430,969,006.40/x
  3. Step 3: Cross multiply
    1,206,447,713.60x = 1,809,671,570.40 × 430,969,006.40
  4. Step 4: Simplify right side
    1,206,447,713.60x = 779,912,358,605,615,616
  5. Step 5: Solve for x
    x = 779,912,358,605,615,616/1,206,447,713.60
  6. Step 6: Final answer
    x = 646,453,509.60

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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.