Home / 818,136,978.46-1,129,032,478.20-460,909,041.18

Finding the Fourth Proportional to 818,136,978.46, 1,129,032,478.20 and 460,909,041.18

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Solution

The fourth proportional to 818,136,978.46, 1,129,032,478.20 and 460,909,041.18 is: 636,056,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,136,978.46 : 1,129,032,478.20 = 460,909,041.18 : x
  2. Step 2: Convert to fraction form
    818,136,978.46/1,129,032,478.20 = 460,909,041.18/x
  3. Step 3: Cross multiply
    818,136,978.46x = 1,129,032,478.20 × 460,909,041.18
  4. Step 4: Simplify right side
    818,136,978.46x = 520,381,276,985,758,784
  5. Step 5: Solve for x
    x = 520,381,276,985,758,784/818,136,978.46
  6. Step 6: Final answer
    x = 636,056,419.26

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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.