Home / 840,282,258.60-1,261,721,000.70-458,076,306.60

Finding the Fourth Proportional to 840,282,258.60, 1,261,721,000.70 and 458,076,306.60

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Solution

The fourth proportional to 840,282,258.60, 1,261,721,000.70 and 458,076,306.60 is: 687,821,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,282,258.60 : 1,261,721,000.70 = 458,076,306.60 : x
  2. Step 2: Convert to fraction form
    840,282,258.60/1,261,721,000.70 = 458,076,306.60/x
  3. Step 3: Cross multiply
    840,282,258.60x = 1,261,721,000.70 × 458,076,306.60
  4. Step 4: Simplify right side
    840,282,258.60x = 577,964,495,960,312,064
  5. Step 5: Solve for x
    x = 577,964,495,960,312,064/840,282,258.60
  6. Step 6: Final answer
    x = 687,821,848.01

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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.