Home / 147,018,256.40-220,191,461.40-86,552,080.40

Finding the Fourth Proportional to 147,018,256.40, 220,191,461.40 and 86,552,080.40

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Solution

The fourth proportional to 147,018,256.40, 220,191,461.40 and 86,552,080.40 is: 129,630,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,018,256.40 : 220,191,461.40 = 86,552,080.40 : x
  2. Step 2: Convert to fraction form
    147,018,256.40/220,191,461.40 = 86,552,080.40/x
  3. Step 3: Cross multiply
    147,018,256.40x = 220,191,461.40 × 86,552,080.40
  4. Step 4: Simplify right side
    147,018,256.40x = 19,058,029,070,486,300
  5. Step 5: Solve for x
    x = 19,058,029,070,486,300/147,018,256.40
  6. Step 6: Final answer
    x = 129,630,357.05

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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.