Home / 765,015,516.15-1,147,523,274.23-458,905,500.15

Finding the Fourth Proportional to 765,015,516.15, 1,147,523,274.23 and 458,905,500.15

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Solution

The fourth proportional to 765,015,516.15, 1,147,523,274.23 and 458,905,500.15 is: 688,358,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,015,516.15 : 1,147,523,274.23 = 458,905,500.15 : x
  2. Step 2: Convert to fraction form
    765,015,516.15/1,147,523,274.23 = 458,905,500.15/x
  3. Step 3: Cross multiply
    765,015,516.15x = 1,147,523,274.23 × 458,905,500.15
  4. Step 4: Simplify right side
    765,015,516.15x = 526,604,742,091,989,184
  5. Step 5: Solve for x
    x = 526,604,742,091,989,184/765,015,516.15
  6. Step 6: Final answer
    x = 688,358,250.23

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Double scale
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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.