Home / 818,037,153.17-1,128,892,534.40-465,613,140.23

Finding the Fourth Proportional to 818,037,153.17, 1,128,892,534.40 and 465,613,140.23

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Solution

The fourth proportional to 818,037,153.17, 1,128,892,534.40 and 465,613,140.23 is: 642,546,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,037,153.17 : 1,128,892,534.40 = 465,613,140.23 : x
  2. Step 2: Convert to fraction form
    818,037,153.17/1,128,892,534.40 = 465,613,140.23/x
  3. Step 3: Cross multiply
    818,037,153.17x = 1,128,892,534.40 × 465,613,140.23
  4. Step 4: Simplify right side
    818,037,153.17x = 525,627,197,921,859,264
  5. Step 5: Solve for x
    x = 525,627,197,921,859,264/818,037,153.17
  6. Step 6: Final answer
    x = 642,546,852.41

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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.