Home / 142,974,931.05-214,364,489.29-72,809,339.50

Finding the Fourth Proportional to 142,974,931.05, 214,364,489.29 and 72,809,339.50

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Solution

The fourth proportional to 142,974,931.05, 214,364,489.29 and 72,809,339.50 is: 109,164,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974,931.05 : 214,364,489.29 = 72,809,339.50 : x
  2. Step 2: Convert to fraction form
    142,974,931.05/214,364,489.29 = 72,809,339.50/x
  3. Step 3: Cross multiply
    142,974,931.05x = 214,364,489.29 × 72,809,339.50
  4. Step 4: Simplify right side
    142,974,931.05x = 15,607,736,877,459,724
  5. Step 5: Solve for x
    x = 15,607,736,877,459,724/142,974,931.05
  6. Step 6: Final answer
    x = 109,164,150.41

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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.