Home / 218,688,014.40-328,032,021.60-89,252,606.40

Finding the Fourth Proportional to 218,688,014.40, 328,032,021.60 and 89,252,606.40

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Solution

The fourth proportional to 218,688,014.40, 328,032,021.60 and 89,252,606.40 is: 133,878,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,688,014.40 : 328,032,021.60 = 89,252,606.40 : x
  2. Step 2: Convert to fraction form
    218,688,014.40/328,032,021.60 = 89,252,606.40/x
  3. Step 3: Cross multiply
    218,688,014.40x = 328,032,021.60 × 89,252,606.40
  4. Step 4: Simplify right side
    218,688,014.40x = 29,277,712,910,461,104
  5. Step 5: Solve for x
    x = 29,277,712,910,461,104/218,688,014.40
  6. Step 6: Final answer
    x = 133,878,909.60

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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.