Home / 1,210,809,465.27-1,670,916,998.12-653,892,458.67

Finding the Fourth Proportional to 1,210,809,465.27, 1,670,916,998.12 and 653,892,458.67

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Solution

The fourth proportional to 1,210,809,465.27, 1,670,916,998.12 and 653,892,458.67 is: 902,371,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809,465.27 : 1,670,916,998.12 = 653,892,458.67 : x
  2. Step 2: Convert to fraction form
    1,210,809,465.27/1,670,916,998.12 = 653,892,458.67/x
  3. Step 3: Cross multiply
    1,210,809,465.27x = 1,670,916,998.12 × 653,892,458.67
  4. Step 4: Simplify right side
    1,210,809,465.27x = 1,092,600,024,130,913,024
  5. Step 5: Solve for x
    x = 1,092,600,024,130,913,024/1,210,809,465.27
  6. Step 6: Final answer
    x = 902,371,558.42

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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.