Home / 156,639,157.38-216,165,637.44-86,079,154.32

Finding the Fourth Proportional to 156,639,157.38, 216,165,637.44 and 86,079,154.32

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Solution

The fourth proportional to 156,639,157.38, 216,165,637.44 and 86,079,154.32 is: 118,791,211.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639,157.38 : 216,165,637.44 = 86,079,154.32 : x
  2. Step 2: Convert to fraction form
    156,639,157.38/216,165,637.44 = 86,079,154.32/x
  3. Step 3: Cross multiply
    156,639,157.38x = 216,165,637.44 × 86,079,154.32
  4. Step 4: Simplify right side
    156,639,157.38x = 18,607,355,263,878,928
  5. Step 5: Solve for x
    x = 18,607,355,263,878,928/156,639,157.38
  6. Step 6: Final answer
    x = 118,791,211.44

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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.