Home / 1,638,138,869.70-2,457,208,304.55-603,742,107.30

Finding the Fourth Proportional to 1,638,138,869.70, 2,457,208,304.55 and 603,742,107.30

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Solution

The fourth proportional to 1,638,138,869.70, 2,457,208,304.55 and 603,742,107.30 is: 905,613,160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,138,869.70 : 2,457,208,304.55 = 603,742,107.30 : x
  2. Step 2: Convert to fraction form
    1,638,138,869.70/2,457,208,304.55 = 603,742,107.30/x
  3. Step 3: Cross multiply
    1,638,138,869.70x = 2,457,208,304.55 × 603,742,107.30
  4. Step 4: Simplify right side
    1,638,138,869.70x = 1,483,520,119,864,077,056
  5. Step 5: Solve for x
    x = 1,483,520,119,864,077,056/1,638,138,869.70
  6. Step 6: Final answer
    x = 905,613,160.95

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Double scale
Find fourth proportional to 1,638,138,870.70, 2,457,208,306.05 and 603,742,108.30
Similar ratio
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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.