Home / 1,185,861,081.60-1,636,488,445.44-657,259,193.28

Finding the Fourth Proportional to 1,185,861,081.60, 1,636,488,445.44 and 657,259,193.28

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Solution

The fourth proportional to 1,185,861,081.60, 1,636,488,445.44 and 657,259,193.28 is: 907,017,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,861,081.60 : 1,636,488,445.44 = 657,259,193.28 : x
  2. Step 2: Convert to fraction form
    1,185,861,081.60/1,636,488,445.44 = 657,259,193.28/x
  3. Step 3: Cross multiply
    1,185,861,081.60x = 1,636,488,445.44 × 657,259,193.28
  4. Step 4: Simplify right side
    1,185,861,081.60x = 1,075,597,075,461,935,744
  5. Step 5: Solve for x
    x = 1,075,597,075,461,935,744/1,185,861,081.60
  6. Step 6: Final answer
    x = 907,017,771.43

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Double scale
Find fourth proportional to 1,185,861,082.60, 1,636,488,446.82 and 657,259,194.28
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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.