Finding the Fourth Proportional to 1,778,773,985.48, 2,454,708,332.64 and 985,871,154.71
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Solution
The fourth proportional to 1,778,773,985.48, 2,454,708,332.64 and 985,871,154.71 is: 1,360,502,322.46
Step by Step Solution
- Step 1: Write the proportion equation
1,778,773,985.48 : 2,454,708,332.64 = 985,871,154.71 : x - Step 2: Convert to fraction form
1,778,773,985.48/2,454,708,332.64 = 985,871,154.71/x - Step 3: Cross multiply
1,778,773,985.48x = 2,454,708,332.64 × 985,871,154.71 - Step 4: Simplify right side
1,778,773,985.48x = 2,420,026,138,376,055,296 - Step 5: Solve for x
x = 2,420,026,138,376,055,296/1,778,773,985.48 - Step 6: Final answer
x = 1,360,502,322.46
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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.