Home / 839,308,830.40-1,258,963,245.60-533,198,814.40

Finding the Fourth Proportional to 839,308,830.40, 1,258,963,245.60 and 533,198,814.40

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Solution

The fourth proportional to 839,308,830.40, 1,258,963,245.60 and 533,198,814.40 is: 799,798,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,308,830.40 : 1,258,963,245.60 = 533,198,814.40 : x
  2. Step 2: Convert to fraction form
    839,308,830.40/1,258,963,245.60 = 533,198,814.40/x
  3. Step 3: Cross multiply
    839,308,830.40x = 1,258,963,245.60 × 533,198,814.40
  4. Step 4: Simplify right side
    839,308,830.40x = 671,277,709,927,095,936
  5. Step 5: Solve for x
    x = 671,277,709,927,095,936/839,308,830.40
  6. Step 6: Final answer
    x = 799,798,221.60

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1.5x scale

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.