Home / 190,779,621.60-286,184,984.40-81,605,618.40

Finding the Fourth Proportional to 190,779,621.60, 286,184,984.40 and 81,605,618.40

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Solution

The fourth proportional to 190,779,621.60, 286,184,984.40 and 81,605,618.40 is: 122,415,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,779,621.60 : 286,184,984.40 = 81,605,618.40 : x
  2. Step 2: Convert to fraction form
    190,779,621.60/286,184,984.40 = 81,605,618.40/x
  3. Step 3: Cross multiply
    190,779,621.60x = 286,184,984.40 × 81,605,618.40
  4. Step 4: Simplify right side
    190,779,621.60x = 23,354,302,628,756,352
  5. Step 5: Solve for x
    x = 23,354,302,628,756,352/190,779,621.60
  6. Step 6: Final answer
    x = 122,415,079.94

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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.