Home / 1,210,122,886.74-1,669,946,906.15-740,189,687.10

Finding the Fourth Proportional to 1,210,122,886.74, 1,669,946,906.15 and 740,189,687.10

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Solution

The fourth proportional to 1,210,122,886.74, 1,669,946,906.15 and 740,189,687.10 is: 1,021,447,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,122,886.74 : 1,669,946,906.15 = 740,189,687.10 : x
  2. Step 2: Convert to fraction form
    1,210,122,886.74/1,669,946,906.15 = 740,189,687.10/x
  3. Step 3: Cross multiply
    1,210,122,886.74x = 1,669,946,906.15 × 740,189,687.10
  4. Step 4: Simplify right side
    1,210,122,886.74x = 1,236,077,477,933,080,576
  5. Step 5: Solve for x
    x = 1,236,077,477,933,080,576/1,210,122,886.74
  6. Step 6: Final answer
    x = 1,021,447,897.13

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Double scale
Find fourth proportional to 1,210,122,887.74, 1,669,946,907.52 and 740,189,688.10
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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.