Home / 28,168,064,427.64-38,872,861,140.33-15,481,249,783.96

Finding the Fourth Proportional to 28,168,064,427.64, 38,872,861,140.33 and 15,481,249,783.96

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Solution

The fourth proportional to 28,168,064,427.64, 38,872,861,140.33 and 15,481,249,783.96 is: 21,364,637,058.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168,064,427.64 : 38,872,861,140.33 = 15,481,249,783.96 : x
  2. Step 2: Convert to fraction form
    28,168,064,427.64/38,872,861,140.33 = 15,481,249,783.96/x
  3. Step 3: Cross multiply
    28,168,064,427.64x = 38,872,861,140.33 × 15,481,249,783.96
  4. Step 4: Simplify right side
    28,168,064,427.64x = 601,800,473,130,640,867,328
  5. Step 5: Solve for x
    x = 601,800,473,130,640,867,328/28,168,064,427.64
  6. Step 6: Final answer
    x = 21,364,637,058.28

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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.