Home / 28,168,064,423.64-38,872,861,134.81-15,481,249,779.96

Finding the Fourth Proportional to 28,168,064,423.64, 38,872,861,134.81 and 15,481,249,779.96

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Solution

The fourth proportional to 28,168,064,423.64, 38,872,861,134.81 and 15,481,249,779.96 is: 21,364,637,052.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168,064,423.64 : 38,872,861,134.81 = 15,481,249,779.96 : x
  2. Step 2: Convert to fraction form
    28,168,064,423.64/38,872,861,134.81 = 15,481,249,779.96/x
  3. Step 3: Cross multiply
    28,168,064,423.64x = 38,872,861,134.81 × 15,481,249,779.96
  4. Step 4: Simplify right side
    28,168,064,423.64x = 601,800,472,889,692,913,664
  5. Step 5: Solve for x
    x = 601,800,472,889,692,913,664/28,168,064,423.64
  6. Step 6: Final answer
    x = 21,364,637,052.76

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1.5x scale

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.