Home / 288,911,317,742.64-398,698,550,110.03-160,452,766,359.79

Finding the Fourth Proportional to 288,911,317,742.64, 398,698,550,110.03 and 160,452,766,359.79

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Solution

The fourth proportional to 288,911,317,742.64, 398,698,550,110.03 and 160,452,766,359.79 is: 221,425,334,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,911,317,742.64 : 398,698,550,110.03 = 160,452,766,359.79 : x
  2. Step 2: Convert to fraction form
    288,911,317,742.64/398,698,550,110.03 = 160,452,766,359.79/x
  3. Step 3: Cross multiply
    288,911,317,742.64x = 398,698,550,110.03 × 160,452,766,359.79
  4. Step 4: Simplify right side
    288,911,317,742.64x = 63,972,285,308,791,680,925,696
  5. Step 5: Solve for x
    x = 63,972,285,308,791,680,925,696/288,911,317,742.64
  6. Step 6: Final answer
    x = 221,425,334,973.47

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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.