Home / 470,696,480.71-649,541,637.79-256,116,011.36

Finding the Fourth Proportional to 470,696,480.71, 649,541,637.79 and 256,116,011.36

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Solution

The fourth proportional to 470,696,480.71, 649,541,637.79 and 256,116,011.36 is: 353,429,482.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,696,480.71 : 649,541,637.79 = 256,116,011.36 : x
  2. Step 2: Convert to fraction form
    470,696,480.71/649,541,637.79 = 256,116,011.36/x
  3. Step 3: Cross multiply
    470,696,480.71x = 649,541,637.79 × 256,116,011.36
  4. Step 4: Simplify right side
    470,696,480.71x = 166,358,013,483,016,640
  5. Step 5: Solve for x
    x = 166,358,013,483,016,640/470,696,480.71
  6. Step 6: Final answer
    x = 353,429,482.27

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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.