Home / 256,121,911.88-384,125,368.64-117,814,686.86

Finding the Fourth Proportional to 256,121,911.88, 384,125,368.64 and 117,814,686.86

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Solution

The fourth proportional to 256,121,911.88, 384,125,368.64 and 117,814,686.86 is: 176,695,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,121,911.88 : 384,125,368.64 = 117,814,686.86 : x
  2. Step 2: Convert to fraction form
    256,121,911.88/384,125,368.64 = 117,814,686.86/x
  3. Step 3: Cross multiply
    256,121,911.88x = 384,125,368.64 × 117,814,686.86
  4. Step 4: Simplify right side
    256,121,911.88x = 45,255,610,021,303,664
  5. Step 5: Solve for x
    x = 45,255,610,021,303,664/256,121,911.88
  6. Step 6: Final answer
    x = 176,695,580.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.