Home / 620,043,411.40-930,065,117.10-556,908,220.60

Finding the Fourth Proportional to 620,043,411.40, 930,065,117.10 and 556,908,220.60

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Solution

The fourth proportional to 620,043,411.40, 930,065,117.10 and 556,908,220.60 is: 835,362,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,043,411.40 : 930,065,117.10 = 556,908,220.60 : x
  2. Step 2: Convert to fraction form
    620,043,411.40/930,065,117.10 = 556,908,220.60/x
  3. Step 3: Cross multiply
    620,043,411.40x = 930,065,117.10 × 556,908,220.60
  4. Step 4: Simplify right side
    620,043,411.40x = 517,960,909,406,291,648
  5. Step 5: Solve for x
    x = 517,960,909,406,291,648/620,043,411.40
  6. Step 6: Final answer
    x = 835,362,330.90

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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.