Home / 143,085,459,300.93-197,457,934,945.02-78,856,184,333.49

Finding the Fourth Proportional to 143,085,459,300.93, 197,457,934,945.02 and 78,856,184,333.49

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Solution

The fourth proportional to 143,085,459,300.93, 197,457,934,945.02 and 78,856,184,333.49 is: 108,821,534,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085,459,300.93 : 197,457,934,945.02 = 78,856,184,333.49 : x
  2. Step 2: Convert to fraction form
    143,085,459,300.93/197,457,934,945.02 = 78,856,184,333.49/x
  3. Step 3: Cross multiply
    143,085,459,300.93x = 197,457,934,945.02 × 78,856,184,333.49
  4. Step 4: Simplify right side
    143,085,459,300.93x = 15,570,779,316,134,774,571,008
  5. Step 5: Solve for x
    x = 15,570,779,316,134,774,571,008/143,085,459,300.93
  6. Step 6: Final answer
    x = 108,821,534,991.81

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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.