Home / 867,109,946.36-1,196,613,040.92-470,633,080.64

Finding the Fourth Proportional to 867,109,946.36, 1,196,613,040.92 and 470,633,080.64

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Solution

The fourth proportional to 867,109,946.36, 1,196,613,040.92 and 470,633,080.64 is: 649,474,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,109,946.36 : 1,196,613,040.92 = 470,633,080.64 : x
  2. Step 2: Convert to fraction form
    867,109,946.36/1,196,613,040.92 = 470,633,080.64/x
  3. Step 3: Cross multiply
    867,109,946.36x = 1,196,613,040.92 × 470,633,080.64
  4. Step 4: Simplify right side
    867,109,946.36x = 563,165,681,782,177,984
  5. Step 5: Solve for x
    x = 563,165,681,782,177,984/867,109,946.36
  6. Step 6: Final answer
    x = 649,474,364.98

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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.