Home / 868,765,813.60-1,303,148,720.40-622,602,342.40

Finding the Fourth Proportional to 868,765,813.60, 1,303,148,720.40 and 622,602,342.40

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Solution

The fourth proportional to 868,765,813.60, 1,303,148,720.40 and 622,602,342.40 is: 933,903,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,765,813.60 : 1,303,148,720.40 = 622,602,342.40 : x
  2. Step 2: Convert to fraction form
    868,765,813.60/1,303,148,720.40 = 622,602,342.40/x
  3. Step 3: Cross multiply
    868,765,813.60x = 1,303,148,720.40 × 622,602,342.40
  4. Step 4: Simplify right side
    868,765,813.60x = 811,343,445,816,602,752
  5. Step 5: Solve for x
    x = 811,343,445,816,602,752/868,765,813.60
  6. Step 6: Final answer
    x = 933,903,513.60

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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.