Home / 753,003,082.11-1,038,821,915.62-470,254,647.40

Finding the Fourth Proportional to 753,003,082.11, 1,038,821,915.62 and 470,254,647.40

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Solution

The fourth proportional to 753,003,082.11, 1,038,821,915.62 and 470,254,647.40 is: 648,750,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,003,082.11 : 1,038,821,915.62 = 470,254,647.40 : x
  2. Step 2: Convert to fraction form
    753,003,082.11/1,038,821,915.62 = 470,254,647.40/x
  3. Step 3: Cross multiply
    753,003,082.11x = 1,038,821,915.62 × 470,254,647.40
  4. Step 4: Simplify right side
    753,003,082.11x = 488,510,833,639,242,880
  5. Step 5: Solve for x
    x = 488,510,833,639,242,880/753,003,082.11
  6. Step 6: Final answer
    x = 648,750,111.71

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1.5x scale

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.