Home / 119,113,080.40-178,669,620.60-78,298,411.60

Finding the Fourth Proportional to 119,113,080.40, 178,669,620.60 and 78,298,411.60

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Solution

The fourth proportional to 119,113,080.40, 178,669,620.60 and 78,298,411.60 is: 117,447,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,113,080.40 : 178,669,620.60 = 78,298,411.60 : x
  2. Step 2: Convert to fraction form
    119,113,080.40/178,669,620.60 = 78,298,411.60/x
  3. Step 3: Cross multiply
    119,113,080.40x = 178,669,620.60 × 78,298,411.60
  4. Step 4: Simplify right side
    119,113,080.40x = 13,989,547,494,154,638
  5. Step 5: Solve for x
    x = 13,989,547,494,154,638/119,113,080.40
  6. Step 6: Final answer
    x = 117,447,617.40

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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.