Home / 86,885,409.60-130,328,114.40-45,929,023.20

Finding the Fourth Proportional to 86,885,409.60, 130,328,114.40 and 45,929,023.20

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Solution

The fourth proportional to 86,885,409.60, 130,328,114.40 and 45,929,023.20 is: 68,893,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885,409.60 : 130,328,114.40 = 45,929,023.20 : x
  2. Step 2: Convert to fraction form
    86,885,409.60/130,328,114.40 = 45,929,023.20/x
  3. Step 3: Cross multiply
    86,885,409.60x = 130,328,114.40 × 45,929,023.20
  4. Step 4: Simplify right side
    86,885,409.60x = 5,985,842,989,889,855
  5. Step 5: Solve for x
    x = 5,985,842,989,889,855/86,885,409.60
  6. Step 6: Final answer
    x = 68,893,534.80

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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.