Home / 99,657,165.60-149,485,748.40-72,447,386.40

Finding the Fourth Proportional to 99,657,165.60, 149,485,748.40 and 72,447,386.40

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Solution

The fourth proportional to 99,657,165.60, 149,485,748.40 and 72,447,386.40 is: 108,671,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,165.60 : 149,485,748.40 = 72,447,386.40 : x
  2. Step 2: Convert to fraction form
    99,657,165.60/149,485,748.40 = 72,447,386.40/x
  3. Step 3: Cross multiply
    99,657,165.60x = 149,485,748.40 × 72,447,386.40
  4. Step 4: Simplify right side
    99,657,165.60x = 10,829,851,775,627,984
  5. Step 5: Solve for x
    x = 10,829,851,775,627,984/99,657,165.60
  6. Step 6: Final answer
    x = 108,671,079.60

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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.