Home / 130,440,298.32-180,009,847.76-71,705,439

Finding the Fourth Proportional to 130,440,298.32, 180,009,847.76 and 71,705,439

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Solution

The fourth proportional to 130,440,298.32, 180,009,847.76 and 71,705,439 is: 98,954,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,440,298.32 : 180,009,847.76 = 71,705,439 : x
  2. Step 2: Convert to fraction form
    130,440,298.32/180,009,847.76 = 71,705,439/x
  3. Step 3: Cross multiply
    130,440,298.32x = 180,009,847.76 × 71,705,439
  4. Step 4: Simplify right side
    130,440,298.32x = 12,907,685,157,953,966
  5. Step 5: Solve for x
    x = 12,907,685,157,953,966/130,440,298.32
  6. Step 6: Final answer
    x = 98,954,735.03

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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.