Home / 281,242,811.40-421,864,217.10-97,009,931.40

Finding the Fourth Proportional to 281,242,811.40, 421,864,217.10 and 97,009,931.40

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Solution

The fourth proportional to 281,242,811.40, 421,864,217.10 and 97,009,931.40 is: 145,514,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,242,811.40 : 421,864,217.10 = 97,009,931.40 : x
  2. Step 2: Convert to fraction form
    281,242,811.40/421,864,217.10 = 97,009,931.40/x
  3. Step 3: Cross multiply
    281,242,811.40x = 421,864,217.10 × 97,009,931.40
  4. Step 4: Simplify right side
    281,242,811.40x = 40,925,018,760,985,712
  5. Step 5: Solve for x
    x = 40,925,018,760,985,712/281,242,811.40
  6. Step 6: Final answer
    x = 145,514,897.10

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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.