Home / 130,776,871.12-180,486,256.82-72,045,554.76

Finding the Fourth Proportional to 130,776,871.12, 180,486,256.82 and 72,045,554.76

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Solution

The fourth proportional to 130,776,871.12, 180,486,256.82 and 72,045,554.76 is: 99,430,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,776,871.12 : 180,486,256.82 = 72,045,554.76 : x
  2. Step 2: Convert to fraction form
    130,776,871.12/180,486,256.82 = 72,045,554.76/x
  3. Step 3: Cross multiply
    130,776,871.12x = 180,486,256.82 × 72,045,554.76
  4. Step 4: Simplify right side
    130,776,871.12x = 13,003,232,499,152,734
  5. Step 5: Solve for x
    x = 13,003,232,499,152,734/130,776,871.12
  6. Step 6: Final answer
    x = 99,430,674.46

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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.