Home / 1,346,434,771.80-1,857,938,437.26-781,809,283.56

Finding the Fourth Proportional to 1,346,434,771.80, 1,857,938,437.26 and 781,809,283.56

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Solution

The fourth proportional to 1,346,434,771.80, 1,857,938,437.26 and 781,809,283.56 is: 1,078,814,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,434,771.80 : 1,857,938,437.26 = 781,809,283.56 : x
  2. Step 2: Convert to fraction form
    1,346,434,771.80/1,857,938,437.26 = 781,809,283.56/x
  3. Step 3: Cross multiply
    1,346,434,771.80x = 1,857,938,437.26 × 781,809,283.56
  4. Step 4: Simplify right side
    1,346,434,771.80x = 1,452,553,518,532,826,368
  5. Step 5: Solve for x
    x = 1,452,553,518,532,826,368/1,346,434,771.80
  6. Step 6: Final answer
    x = 1,078,814,621.37

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Double scale
Find fourth proportional to 1,346,434,772.80, 1,857,938,438.64 and 781,809,284.56
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.