Home / 69,018,001.20-103,401,030.60-42,060,164.40

Finding the Fourth Proportional to 69,018,001.20, 103,401,030.60 and 42,060,164.40

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Solution

The fourth proportional to 69,018,001.20, 103,401,030.60 and 42,060,164.40 is: 63,013,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,018,001.20 : 103,401,030.60 = 42,060,164.40 : x
  2. Step 2: Convert to fraction form
    69,018,001.20/103,401,030.60 = 42,060,164.40/x
  3. Step 3: Cross multiply
    69,018,001.20x = 103,401,030.60 × 42,060,164.40
  4. Step 4: Simplify right side
    69,018,001.20x = 4,349,064,346,165,430
  5. Step 5: Solve for x
    x = 4,349,064,346,165,430/69,018,001.20
  6. Step 6: Final answer
    x = 63,013,478.67

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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.