Home / 13,051,931,011.28-19,563,957,735.20-7,443,792,411.60

Finding the Fourth Proportional to 13,051,931,011.28, 19,563,957,735.20 and 7,443,792,411.60

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Solution

The fourth proportional to 13,051,931,011.28, 19,563,957,735.20 and 7,443,792,411.60 is: 11,157,739,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051,931,011.28 : 19,563,957,735.20 = 7,443,792,411.60 : x
  2. Step 2: Convert to fraction form
    13,051,931,011.28/19,563,957,735.20 = 7,443,792,411.60/x
  3. Step 3: Cross multiply
    13,051,931,011.28x = 19,563,957,735.20 × 7,443,792,411.60
  4. Step 4: Simplify right side
    13,051,931,011.28x = 145,630,040,130,144,894,976
  5. Step 5: Solve for x
    x = 145,630,040,130,144,894,976/13,051,931,011.28
  6. Step 6: Final answer
    x = 11,157,739,035.27

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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.