Home / 867,111,528.60-1,196,615,220.21-470,634,660.45

Finding the Fourth Proportional to 867,111,528.60, 1,196,615,220.21 and 470,634,660.45

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Solution

The fourth proportional to 867,111,528.60, 1,196,615,220.21 and 470,634,660.45 is: 649,476,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,111,528.60 : 1,196,615,220.21 = 470,634,660.45 : x
  2. Step 2: Convert to fraction form
    867,111,528.60/1,196,615,220.21 = 470,634,660.45/x
  3. Step 3: Cross multiply
    867,111,528.60x = 1,196,615,220.21 × 470,634,660.45
  4. Step 4: Simplify right side
    867,111,528.60x = 563,168,597,852,835,328
  5. Step 5: Solve for x
    x = 563,168,597,852,835,328/867,111,528.60
  6. Step 6: Final answer
    x = 649,476,542.84

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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.