Home / 130,849,172.32-180,573,091.68-72,113,955.52

Finding the Fourth Proportional to 130,849,172.32, 180,573,091.68 and 72,113,955.52

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Solution

The fourth proportional to 130,849,172.32, 180,573,091.68 and 72,113,955.52 is: 99,517,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,849,172.32 : 180,573,091.68 = 72,113,955.52 : x
  2. Step 2: Convert to fraction form
    130,849,172.32/180,573,091.68 = 72,113,955.52/x
  3. Step 3: Cross multiply
    130,849,172.32x = 180,573,091.68 × 72,113,955.52
  4. Step 4: Simplify right side
    130,849,172.32x = 13,021,839,901,520,402
  5. Step 5: Solve for x
    x = 13,021,839,901,520,402/130,849,172.32
  6. Step 6: Final answer
    x = 99,517,938.64

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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.