Home / 146,784,389.40-220,346,586.90-78,759,941.40

Finding the Fourth Proportional to 146,784,389.40, 220,346,586.90 and 78,759,941.40

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Solution

The fourth proportional to 146,784,389.40, 220,346,586.90 and 78,759,941.40 is: 118,231,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,784,389.40 : 220,346,586.90 = 78,759,941.40 : x
  2. Step 2: Convert to fraction form
    146,784,389.40/220,346,586.90 = 78,759,941.40/x
  3. Step 3: Cross multiply
    146,784,389.40x = 220,346,586.90 × 78,759,941.40
  4. Step 4: Simplify right side
    146,784,389.40x = 17,354,484,271,934,010
  5. Step 5: Solve for x
    x = 17,354,484,271,934,010/146,784,389.40
  6. Step 6: Final answer
    x = 118,231,130.32

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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.