Home / 142,164,745.84-213,255,095.64-39,920,811.76

Finding the Fourth Proportional to 142,164,745.84, 213,255,095.64 and 39,920,811.76

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Solution

The fourth proportional to 142,164,745.84, 213,255,095.64 and 39,920,811.76 is: 59,883,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,164,745.84 : 213,255,095.64 = 39,920,811.76 : x
  2. Step 2: Convert to fraction form
    142,164,745.84/213,255,095.64 = 39,920,811.76/x
  3. Step 3: Cross multiply
    142,164,745.84x = 213,255,095.64 × 39,920,811.76
  4. Step 4: Simplify right side
    142,164,745.84x = 8,513,316,529,905,236
  5. Step 5: Solve for x
    x = 8,513,316,529,905,236/142,164,745.84
  6. Step 6: Final answer
    x = 59,883,457.60

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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.