Home / 1,089,936,868.80-1,506,080,378.64-776,126,272.32

Finding the Fourth Proportional to 1,089,936,868.80, 1,506,080,378.64 and 776,126,272.32

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Solution

The fourth proportional to 1,089,936,868.80, 1,506,080,378.64 and 776,126,272.32 is: 1,072,455,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,936,868.80 : 1,506,080,378.64 = 776,126,272.32 : x
  2. Step 2: Convert to fraction form
    1,089,936,868.80/1,506,080,378.64 = 776,126,272.32/x
  3. Step 3: Cross multiply
    1,089,936,868.80x = 1,506,080,378.64 × 776,126,272.32
  4. Step 4: Simplify right side
    1,089,936,868.80x = 1,168,908,550,088,157,440
  5. Step 5: Solve for x
    x = 1,168,908,550,088,157,440/1,089,936,868.80
  6. Step 6: Final answer
    x = 1,072,455,280.25

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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.