Home / 868,838,907.60-1,303,258,361.40-402,499,430.10

Finding the Fourth Proportional to 868,838,907.60, 1,303,258,361.40 and 402,499,430.10

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Solution

The fourth proportional to 868,838,907.60, 1,303,258,361.40 and 402,499,430.10 is: 603,749,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,838,907.60 : 1,303,258,361.40 = 402,499,430.10 : x
  2. Step 2: Convert to fraction form
    868,838,907.60/1,303,258,361.40 = 402,499,430.10/x
  3. Step 3: Cross multiply
    868,838,907.60x = 1,303,258,361.40 × 402,499,430.10
  4. Step 4: Simplify right side
    868,838,907.60x = 524,560,747,736,559,936
  5. Step 5: Solve for x
    x = 524,560,747,736,559,936/868,838,907.60
  6. Step 6: Final answer
    x = 603,749,145.15

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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.