Home / 130,507,771.41-180,105,346.40-71,774,982.45

Finding the Fourth Proportional to 130,507,771.41, 180,105,346.40 and 71,774,982.45

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Solution

The fourth proportional to 130,507,771.41, 180,105,346.40 and 71,774,982.45 is: 99,052,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,771.41 : 180,105,346.40 = 71,774,982.45 : x
  2. Step 2: Convert to fraction form
    130,507,771.41/180,105,346.40 = 71,774,982.45/x
  3. Step 3: Cross multiply
    130,507,771.41x = 180,105,346.40 × 71,774,982.45
  4. Step 4: Simplify right side
    130,507,771.41x = 12,927,058,076,652,298
  5. Step 5: Solve for x
    x = 12,927,058,076,652,298/130,507,771.41
  6. Step 6: Final answer
    x = 99,052,017.65

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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.