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Finding the Third Proportional to 291,779,928 and 630,147,158.50

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Solution

The third proportional to 291,779,928 and 630,147,158.50 is: 1,360,907,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,779,928 : 630,147,158.50 = 630,147,158.50 : x
  2. Step 2: Convert to fraction form
    291,779,928/630,147,158.50 = 630,147,158.50/x
  3. Step 3: Cross multiply
    291,779,928x = 630,147,158.50 × 630,147,158.50
  4. Step 4: Simplify right side
    291,779,928x = 397,085,441,365,624,128
  5. Step 5: Solve for x
    x = 397,085,441,365,624,128/291,779,928
  6. Step 6: Final answer
    x = 1,360,907,325.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.