Home / 1,127,728,795.72-1,556,242,288.14-625,908,141.04

Finding the Fourth Proportional to 1,127,728,795.72, 1,556,242,288.14 and 625,908,141.04

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Solution

The fourth proportional to 1,127,728,795.72, 1,556,242,288.14 and 625,908,141.04 is: 863,740,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,728,795.72 : 1,556,242,288.14 = 625,908,141.04 : x
  2. Step 2: Convert to fraction form
    1,127,728,795.72/1,556,242,288.14 = 625,908,141.04/x
  3. Step 3: Cross multiply
    1,127,728,795.72x = 1,556,242,288.14 × 625,908,141.04
  4. Step 4: Simplify right side
    1,127,728,795.72x = 974,064,717,577,543,424
  5. Step 5: Solve for x
    x = 974,064,717,577,543,424/1,127,728,795.72
  6. Step 6: Final answer
    x = 863,740,219.52

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Double scale
Find fourth proportional to 1,127,728,796.72, 1,556,242,289.52 and 625,908,142.04
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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.