Home / 12,357,038.90-18,535,558.35-6,688,334.90

Finding the Fourth Proportional to 12,357,038.90, 18,535,558.35 and 6,688,334.90

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Solution

The fourth proportional to 12,357,038.90, 18,535,558.35 and 6,688,334.90 is: 10,032,502.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,038.90 : 18,535,558.35 = 6,688,334.90 : x
  2. Step 2: Convert to fraction form
    12,357,038.90/18,535,558.35 = 6,688,334.90/x
  3. Step 3: Cross multiply
    12,357,038.90x = 18,535,558.35 × 6,688,334.90
  4. Step 4: Simplify right side
    12,357,038.90x = 123,972,021,803,291.44
  5. Step 5: Solve for x
    x = 123,972,021,803,291.44/12,357,038.90
  6. Step 6: Final answer
    x = 10,032,502.35

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Similar ratio
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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.