Home / 1,430,784,003.60-2,146,176,005.40-511,698,128.40

Finding the Fourth Proportional to 1,430,784,003.60, 2,146,176,005.40 and 511,698,128.40

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Solution

The fourth proportional to 1,430,784,003.60, 2,146,176,005.40 and 511,698,128.40 is: 767,547,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,784,003.60 : 2,146,176,005.40 = 511,698,128.40 : x
  2. Step 2: Convert to fraction form
    1,430,784,003.60/2,146,176,005.40 = 511,698,128.40/x
  3. Step 3: Cross multiply
    1,430,784,003.60x = 2,146,176,005.40 × 511,698,128.40
  4. Step 4: Simplify right side
    1,430,784,003.60x = 1,098,194,245,180,168,320
  5. Step 5: Solve for x
    x = 1,098,194,245,180,168,320/1,430,784,003.60
  6. Step 6: Final answer
    x = 767,547,192.60

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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.