Home / 806,804,906.40-1,210,207,359.60-692,013,650.40

Finding the Fourth Proportional to 806,804,906.40, 1,210,207,359.60 and 692,013,650.40

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Solution

The fourth proportional to 806,804,906.40, 1,210,207,359.60 and 692,013,650.40 is: 1,038,020,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,804,906.40 : 1,210,207,359.60 = 692,013,650.40 : x
  2. Step 2: Convert to fraction form
    806,804,906.40/1,210,207,359.60 = 692,013,650.40/x
  3. Step 3: Cross multiply
    806,804,906.40x = 1,210,207,359.60 × 692,013,650.40
  4. Step 4: Simplify right side
    806,804,906.40x = 837,480,012,657,741,440
  5. Step 5: Solve for x
    x = 837,480,012,657,741,440/806,804,906.40
  6. Step 6: Final answer
    x = 1,038,020,475.60

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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.