Home / 405,655,559,137.40-608,483,338,706.10-286,639,984,916.60

Finding the Fourth Proportional to 405,655,559,137.40, 608,483,338,706.10 and 286,639,984,916.60

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Solution

The fourth proportional to 405,655,559,137.40, 608,483,338,706.10 and 286,639,984,916.60 is: 429,959,977,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,655,559,137.40 : 608,483,338,706.10 = 286,639,984,916.60 : x
  2. Step 2: Convert to fraction form
    405,655,559,137.40/608,483,338,706.10 = 286,639,984,916.60/x
  3. Step 3: Cross multiply
    405,655,559,137.40x = 608,483,338,706.10 × 286,639,984,916.60
  4. Step 4: Simplify right side
    405,655,559,137.40x = 174,415,655,028,718,907,162,624
  5. Step 5: Solve for x
    x = 174,415,655,028,718,907,162,624/405,655,559,137.40
  6. Step 6: Final answer
    x = 429,959,977,374.90

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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.