Home / 873,732,402.90-1,205,742,564.81-477,255,240.72

Finding the Fourth Proportional to 873,732,402.90, 1,205,742,564.81 and 477,255,240.72

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Solution

The fourth proportional to 873,732,402.90, 1,205,742,564.81 and 477,255,240.72 is: 658,607,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,732,402.90 : 1,205,742,564.81 = 477,255,240.72 : x
  2. Step 2: Convert to fraction form
    873,732,402.90/1,205,742,564.81 = 477,255,240.72/x
  3. Step 3: Cross multiply
    873,732,402.90x = 1,205,742,564.81 × 477,255,240.72
  4. Step 4: Simplify right side
    873,732,402.90x = 575,446,958,014,746,752
  5. Step 5: Solve for x
    x = 575,446,958,014,746,752/873,732,402.90
  6. Step 6: Final answer
    x = 658,607,779.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.