Home / 977,186,628.40-1,465,779,942.60-870,048,122.80

Finding the Fourth Proportional to 977,186,628.40, 1,465,779,942.60 and 870,048,122.80

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Solution

The fourth proportional to 977,186,628.40, 1,465,779,942.60 and 870,048,122.80 is: 1,305,072,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,186,628.40 : 1,465,779,942.60 = 870,048,122.80 : x
  2. Step 2: Convert to fraction form
    977,186,628.40/1,465,779,942.60 = 870,048,122.80/x
  3. Step 3: Cross multiply
    977,186,628.40x = 1,465,779,942.60 × 870,048,122.80
  4. Step 4: Simplify right side
    977,186,628.40x = 1,275,299,087,497,021,696
  5. Step 5: Solve for x
    x = 1,275,299,087,497,021,696/977,186,628.40
  6. Step 6: Final answer
    x = 1,305,072,184.20

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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.