Home / 127,316,492.40-190,838,771.28-72,611,284.32

Finding the Fourth Proportional to 127,316,492.40, 190,838,771.28 and 72,611,284.32

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Solution

The fourth proportional to 127,316,492.40, 190,838,771.28 and 72,611,284.32 is: 108,839,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,316,492.40 : 190,838,771.28 = 72,611,284.32 : x
  2. Step 2: Convert to fraction form
    127,316,492.40/190,838,771.28 = 72,611,284.32/x
  3. Step 3: Cross multiply
    127,316,492.40x = 190,838,771.28 × 72,611,284.32
  4. Step 4: Simplify right side
    127,316,492.40x = 13,857,048,280,691,530
  5. Step 5: Solve for x
    x = 13,857,048,280,691,530/127,316,492.40
  6. Step 6: Final answer
    x = 108,839,381.45

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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.