Home / 1,680,123,938.40-2,519,430,080.40-644,640,674.40

Finding the Fourth Proportional to 1,680,123,938.40, 2,519,430,080.40 and 644,640,674.40

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Solution

The fourth proportional to 1,680,123,938.40, 2,519,430,080.40 and 644,640,674.40 is: 966,671,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,123,938.40 : 2,519,430,080.40 = 644,640,674.40 : x
  2. Step 2: Convert to fraction form
    1,680,123,938.40/2,519,430,080.40 = 644,640,674.40/x
  3. Step 3: Cross multiply
    1,680,123,938.40x = 2,519,430,080.40 × 644,640,674.40
  4. Step 4: Simplify right side
    1,680,123,938.40x = 1,624,127,106,132,702,208
  5. Step 5: Solve for x
    x = 1,624,127,106,132,702,208/1,680,123,938.40
  6. Step 6: Final answer
    x = 966,671,011.00

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1.5x scale

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.