Home / 298,971,077,518.90-448,457,779,756.89-72,330,165,896.66

Finding the Fourth Proportional to 298,971,077,518.90, 448,457,779,756.89 and 72,330,165,896.66

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Solution

The fourth proportional to 298,971,077,518.90, 448,457,779,756.89 and 72,330,165,896.66 is: 108,495,530,325.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,971,077,518.90 : 448,457,779,756.89 = 72,330,165,896.66 : x
  2. Step 2: Convert to fraction form
    298,971,077,518.90/448,457,779,756.89 = 72,330,165,896.66/x
  3. Step 3: Cross multiply
    298,971,077,518.90x = 448,457,779,756.89 × 72,330,165,896.66
  4. Step 4: Simplify right side
    298,971,077,518.90x = 32,437,025,607,461,424,332,800
  5. Step 5: Solve for x
    x = 32,437,025,607,461,424,332,800/298,971,077,518.90
  6. Step 6: Final answer
    x = 108,495,530,325.71

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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.