Home / 818,210,951.10-1,128,851,036.55-465,698,743.74

Finding the Fourth Proportional to 818,210,951.10, 1,128,851,036.55 and 465,698,743.74

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Solution

The fourth proportional to 818,210,951.10, 1,128,851,036.55 and 465,698,743.74 is: 642,504,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,210,951.10 : 1,128,851,036.55 = 465,698,743.74 : x
  2. Step 2: Convert to fraction form
    818,210,951.10/1,128,851,036.55 = 465,698,743.74/x
  3. Step 3: Cross multiply
    818,210,951.10x = 1,128,851,036.55 × 465,698,743.74
  4. Step 4: Simplify right side
    818,210,951.10x = 525,704,509,590,931,840
  5. Step 5: Solve for x
    x = 525,704,509,590,931,840/818,210,951.10
  6. Step 6: Final answer
    x = 642,504,856.34

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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.