Home / 156,812,271.71-216,401,113.08-87,196,157.91

Finding the Fourth Proportional to 156,812,271.71, 216,401,113.08 and 87,196,157.91

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Solution

The fourth proportional to 156,812,271.71, 216,401,113.08 and 87,196,157.91 is: 120,330,796.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812,271.71 : 216,401,113.08 = 87,196,157.91 : x
  2. Step 2: Convert to fraction form
    156,812,271.71/216,401,113.08 = 87,196,157.91/x
  3. Step 3: Cross multiply
    156,812,271.71x = 216,401,113.08 × 87,196,157.91
  4. Step 4: Simplify right side
    156,812,271.71x = 18,869,345,628,023,448
  5. Step 5: Solve for x
    x = 18,869,345,628,023,448/156,812,271.71
  6. Step 6: Final answer
    x = 120,330,796.96

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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.