Home / 28,496,490-42,744,735-12,540,138

Finding the Fourth Proportional to 28,496,490, 42,744,735 and 12,540,138

Calculator

Solution

The fourth proportional to 28,496,490, 42,744,735 and 12,540,138 is: 18,810,207

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496,490 : 42,744,735 = 12,540,138 : x
  2. Step 2: Convert to fraction form
    28,496,490/42,744,735 = 12,540,138/x
  3. Step 3: Cross multiply
    28,496,490x = 42,744,735 × 12,540,138
  4. Step 4: Simplify right side
    28,496,490x = 536,024,875,673,430
  5. Step 5: Solve for x
    x = 536,024,875,673,430/28,496,490
  6. Step 6: Final answer
    x = 18,810,207

Related Problems

Find fourth proportional to 14,248,245, 21,372,367.50 and 6,270,069
Half scale
Find fourth proportional to 56,992,980, 85,489,470 and 25,080,276
Double scale
Find fourth proportional to 28,496,491, 42,744,736.50 and 12,540,139
Similar ratio
Find fourth proportional to 42,744,735, 64,117,102.50 and 18,810,207
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.