Home / 211,019,925.84-316,117,857.90-145,429,346.40

Finding the Fourth Proportional to 211,019,925.84, 316,117,857.90 and 145,429,346.40

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Solution

The fourth proportional to 211,019,925.84, 316,117,857.90 and 145,429,346.40 is: 217,860,058.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,019,925.84 : 316,117,857.90 = 145,429,346.40 : x
  2. Step 2: Convert to fraction form
    211,019,925.84/316,117,857.90 = 145,429,346.40/x
  3. Step 3: Cross multiply
    211,019,925.84x = 316,117,857.90 × 145,429,346.40
  4. Step 4: Simplify right side
    211,019,925.84x = 45,972,813,459,765,072
  5. Step 5: Solve for x
    x = 45,972,813,459,765,072/211,019,925.84
  6. Step 6: Final answer
    x = 217,860,058.84

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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.