Home / 640,598,718.40-960,898,077.60-533,460,212.80

Finding the Fourth Proportional to 640,598,718.40, 960,898,077.60 and 533,460,212.80

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Solution

The fourth proportional to 640,598,718.40, 960,898,077.60 and 533,460,212.80 is: 800,190,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,598,718.40 : 960,898,077.60 = 533,460,212.80 : x
  2. Step 2: Convert to fraction form
    640,598,718.40/960,898,077.60 = 533,460,212.80/x
  3. Step 3: Cross multiply
    640,598,718.40x = 960,898,077.60 × 533,460,212.80
  4. Step 4: Simplify right side
    640,598,718.40x = 512,600,892,955,606,912
  5. Step 5: Solve for x
    x = 512,600,892,955,606,912/640,598,718.40
  6. Step 6: Final answer
    x = 800,190,319.20

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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.