Home / 21,510,246.40-32,256,038.40-7,127,756.80

Finding the Fourth Proportional to 21,510,246.40, 32,256,038.40 and 7,127,756.80

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Solution

The fourth proportional to 21,510,246.40, 32,256,038.40 and 7,127,756.80 is: 10,688,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,510,246.40 : 32,256,038.40 = 7,127,756.80 : x
  2. Step 2: Convert to fraction form
    21,510,246.40/32,256,038.40 = 7,127,756.80/x
  3. Step 3: Cross multiply
    21,510,246.40x = 32,256,038.40 × 7,127,756.80
  4. Step 4: Simplify right side
    21,510,246.40x = 229,913,197,046,661.09
  5. Step 5: Solve for x
    x = 229,913,197,046,661.09/21,510,246.40
  6. Step 6: Final answer
    x = 10,688,543.16

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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.