Home / 459,598,495.58-685,349,990.86-455,453,255.78

Finding the Fourth Proportional to 459,598,495.58, 685,349,990.86 and 455,453,255.78

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Solution

The fourth proportional to 459,598,495.58, 685,349,990.86 and 455,453,255.78 is: 679,168,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,598,495.58 : 685,349,990.86 = 455,453,255.78 : x
  2. Step 2: Convert to fraction form
    459,598,495.58/685,349,990.86 = 455,453,255.78/x
  3. Step 3: Cross multiply
    459,598,495.58x = 685,349,990.86 × 455,453,255.78
  4. Step 4: Simplify right side
    459,598,495.58x = 312,144,884,685,980,224
  5. Step 5: Solve for x
    x = 312,144,884,685,980,224/459,598,495.58
  6. Step 6: Final answer
    x = 679,168,638.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.