Home / 380,890,101,009.04-525,628,425,189.12-209,612,032,498.50

Finding the Fourth Proportional to 380,890,101,009.04, 525,628,425,189.12 and 209,612,032,498.50

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Solution

The fourth proportional to 380,890,101,009.04, 525,628,425,189.12 and 209,612,032,498.50 is: 289,264,652,063.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890,101,009.04 : 525,628,425,189.12 = 209,612,032,498.50 : x
  2. Step 2: Convert to fraction form
    380,890,101,009.04/525,628,425,189.12 = 209,612,032,498.50/x
  3. Step 3: Cross multiply
    380,890,101,009.04x = 525,628,425,189.12 × 209,612,032,498.50
  4. Step 4: Simplify right side
    380,890,101,009.04x = 110,178,042,542,877,191,438,336
  5. Step 5: Solve for x
    x = 110,178,042,542,877,191,438,336/380,890,101,009.04
  6. Step 6: Final answer
    x = 289,264,652,063.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.