Home / 306,021,655,808.56-422,445,319,271.10-197,687,587,172.28

Finding the Fourth Proportional to 306,021,655,808.56, 422,445,319,271.10 and 197,687,587,172.28

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Solution

The fourth proportional to 306,021,655,808.56, 422,445,319,271.10 and 197,687,587,172.28 is: 272,896,359,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,021,655,808.56 : 422,445,319,271.10 = 197,687,587,172.28 : x
  2. Step 2: Convert to fraction form
    306,021,655,808.56/422,445,319,271.10 = 197,687,587,172.28/x
  3. Step 3: Cross multiply
    306,021,655,808.56x = 422,445,319,271.10 × 197,687,587,172.28
  4. Step 4: Simplify right side
    306,021,655,808.56x = 83,512,195,878,927,240,003,584
  5. Step 5: Solve for x
    x = 83,512,195,878,927,240,003,584/306,021,655,808.56
  6. Step 6: Final answer
    x = 272,896,359,763.41

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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.