Home / 1,415,294,075.18-1,953,111,742.83-780,200,628.75

Finding the Fourth Proportional to 1,415,294,075.18, 1,953,111,742.83 and 780,200,628.75

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Solution

The fourth proportional to 1,415,294,075.18, 1,953,111,742.83 and 780,200,628.75 is: 1,076,680,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,294,075.18 : 1,953,111,742.83 = 780,200,628.75 : x
  2. Step 2: Convert to fraction form
    1,415,294,075.18/1,953,111,742.83 = 780,200,628.75/x
  3. Step 3: Cross multiply
    1,415,294,075.18x = 1,953,111,742.83 × 780,200,628.75
  4. Step 4: Simplify right side
    1,415,294,075.18x = 1,523,819,009,774,974,208
  5. Step 5: Solve for x
    x = 1,523,819,009,774,974,208/1,415,294,075.18
  6. Step 6: Final answer
    x = 1,076,680,130.65

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Half scale
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Double scale
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1.5x scale

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.