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Finding the Fourth Proportional to 553,761,813.60, 830,642,720.40 and 553,761,813.60

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Solution

The fourth proportional to 553,761,813.60, 830,642,720.40 and 553,761,813.60 is: 830,642,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,761,813.60 : 830,642,720.40 = 553,761,813.60 : x
  2. Step 2: Convert to fraction form
    553,761,813.60/830,642,720.40 = 553,761,813.60/x
  3. Step 3: Cross multiply
    553,761,813.60x = 830,642,720.40 × 553,761,813.60
  4. Step 4: Simplify right side
    553,761,813.60x = 459,978,219,302,341,696
  5. Step 5: Solve for x
    x = 459,978,219,302,341,696/553,761,813.60
  6. Step 6: Final answer
    x = 830,642,720.40

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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.