Home / 830,020,702.71-1,245,249,427.34-298,285,845.13

Finding the Fourth Proportional to 830,020,702.71, 1,245,249,427.34 and 298,285,845.13

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Solution

The fourth proportional to 830,020,702.71, 1,245,249,427.34 and 298,285,845.13 is: 447,507,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,020,702.71 : 1,245,249,427.34 = 298,285,845.13 : x
  2. Step 2: Convert to fraction form
    830,020,702.71/1,245,249,427.34 = 298,285,845.13/x
  3. Step 3: Cross multiply
    830,020,702.71x = 1,245,249,427.34 × 298,285,845.13
  4. Step 4: Simplify right side
    830,020,702.71x = 371,440,277,831,760,384
  5. Step 5: Solve for x
    x = 371,440,277,831,760,384/830,020,702.71
  6. Step 6: Final answer
    x = 447,507,244.84

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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.