Finding the Fourth Proportional to 554,708,643.28, 765,483,276.36 and 316,549,559.14
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Solution
The fourth proportional to 554,708,643.28, 765,483,276.36 and 316,549,559.14 is: 436,830,030.68
Step by Step Solution
- Step 1: Write the proportion equation
554,708,643.28 : 765,483,276.36 = 316,549,559.14 : x - Step 2: Convert to fraction form
554,708,643.28/765,483,276.36 = 316,549,559.14/x - Step 3: Cross multiply
554,708,643.28x = 765,483,276.36 × 316,549,559.14 - Step 4: Simplify right side
554,708,643.28x = 242,313,393,660,800,768 - Step 5: Solve for x
x = 242,313,393,660,800,768/554,708,643.28 - Step 6: Final answer
x = 436,830,030.68
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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.