Home / 1,256,307,215.10-1,884,460,822.65-705,309,186.30

Finding the Fourth Proportional to 1,256,307,215.10, 1,884,460,822.65 and 705,309,186.30

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Solution

The fourth proportional to 1,256,307,215.10, 1,884,460,822.65 and 705,309,186.30 is: 1,057,963,779.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,307,215.10 : 1,884,460,822.65 = 705,309,186.30 : x
  2. Step 2: Convert to fraction form
    1,256,307,215.10/1,884,460,822.65 = 705,309,186.30/x
  3. Step 3: Cross multiply
    1,256,307,215.10x = 1,884,460,822.65 × 705,309,186.30
  4. Step 4: Simplify right side
    1,256,307,215.10x = 1,329,127,529,437,500,160
  5. Step 5: Solve for x
    x = 1,329,127,529,437,500,160/1,256,307,215.10
  6. Step 6: Final answer
    x = 1,057,963,779.45

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Double scale
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Similar ratio
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1.5x scale

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.