Home / 868,838,862.60-1,303,258,293.90-402,499,385.10

Finding the Fourth Proportional to 868,838,862.60, 1,303,258,293.90 and 402,499,385.10

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Solution

The fourth proportional to 868,838,862.60, 1,303,258,293.90 and 402,499,385.10 is: 603,749,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,838,862.60 : 1,303,258,293.90 = 402,499,385.10 : x
  2. Step 2: Convert to fraction form
    868,838,862.60/1,303,258,293.90 = 402,499,385.10/x
  3. Step 3: Cross multiply
    868,838,862.60x = 1,303,258,293.90 × 402,499,385.10
  4. Step 4: Simplify right side
    868,838,862.60x = 524,560,661,921,225,152
  5. Step 5: Solve for x
    x = 524,560,661,921,225,152/868,838,862.60
  6. Step 6: Final answer
    x = 603,749,077.65

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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.