Finding the Fourth Proportional to 919,196,995.16, 1,370,699,987.68 and 910,906,515.56
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Solution
The fourth proportional to 919,196,995.16, 1,370,699,987.68 and 910,906,515.56 is: 1,358,337,283.77
Step by Step Solution
- Step 1: Write the proportion equation
919,196,995.16 : 1,370,699,987.68 = 910,906,515.56 : x - Step 2: Convert to fraction form
919,196,995.16/1,370,699,987.68 = 910,906,515.56/x - Step 3: Cross multiply
919,196,995.16x = 1,370,699,987.68 × 910,906,515.56 - Step 4: Simplify right side
919,196,995.16x = 1,248,579,549,655,723,776 - Step 5: Solve for x
x = 1,248,579,549,655,723,776/919,196,995.16 - Step 6: Final answer
x = 1,358,337,283.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.