Home / 257,430,654.40-386,145,981.60-236,267,492.80

Finding the Fourth Proportional to 257,430,654.40, 386,145,981.60 and 236,267,492.80

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Solution

The fourth proportional to 257,430,654.40, 386,145,981.60 and 236,267,492.80 is: 354,401,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,430,654.40 : 386,145,981.60 = 236,267,492.80 : x
  2. Step 2: Convert to fraction form
    257,430,654.40/386,145,981.60 = 236,267,492.80/x
  3. Step 3: Cross multiply
    257,430,654.40x = 386,145,981.60 × 236,267,492.80
  4. Step 4: Simplify right side
    257,430,654.40x = 91,233,742,927,426,944
  5. Step 5: Solve for x
    x = 91,233,742,927,426,944/257,430,654.40
  6. Step 6: Final answer
    x = 354,401,239.20

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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.