Home / 1,168,941,841.40-1,613,082,417.54-640,308,172.88

Finding the Fourth Proportional to 1,168,941,841.40, 1,613,082,417.54 and 640,308,172.88

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Solution

The fourth proportional to 1,168,941,841.40, 1,613,082,417.54 and 640,308,172.88 is: 883,593,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,941,841.40 : 1,613,082,417.54 = 640,308,172.88 : x
  2. Step 2: Convert to fraction form
    1,168,941,841.40/1,613,082,417.54 = 640,308,172.88/x
  3. Step 3: Cross multiply
    1,168,941,841.40x = 1,613,082,417.54 × 640,308,172.88
  4. Step 4: Simplify right side
    1,168,941,841.40x = 1,032,869,855,479,890,688
  5. Step 5: Solve for x
    x = 1,032,869,855,479,890,688/1,168,941,841.40
  6. Step 6: Final answer
    x = 883,593,878.58

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Double scale
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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.